McGrath NX6 Digital Smart Lock - 5-in-1 Access, Euro 60/68 Mortice with Privacy Bolt, Gateway-Ready
At A Glance
At A Glance
DISPATCHSame Day Before 11am
PIN Code 
RFID Card / Tag 
Fingerprint 
App eKey (Bluetooth) 
Remote (Via Gateway) 
Mechanical Key 
Face / PalmNot Available
The McGrath NX6 is a full-size 5-in-1 digital smart lock for standard-stile timber and aluminium hinged doors in homes, offices and light commercial premises. It is one of the larger-bodied locks in the McGrath Locks range, and that is deliberate: the 370 mm body covers the oversized cutouts and fixing holes an earlier lock often leaves in a door face, so it is the natural choice for a retrofit over existing hardware. Every NX6 ships with the McGrath Euro 60/68 mortice lock as standard - a heavy-duty SS304 stainless steel body with three-point deadbolts, an anti-friction dead latch and a manual privacy bolt, tested to 500,000 cycles (mortice spec sheet). It suits doors from 38 mm to 110 mm thick - check yours against Chapter 02 - door thickness before ordering.
Five ways in: PIN code, RFID card or tag, fingerprint, a Bluetooth eKey in the McGrath Locks App, and a mechanical key override. Day-to-day access and user management run over Bluetooth with no internet connection at all - what a McGrath lock does without Wi-Fi is more than most people expect. For remote access - locking, unlocking and live status from anywhere - the NX6 pairs with a separate McGrath G3, G4 or G5 gateway, sold separately. Start with whether you actually need a gateway, then use the G2 vs G3 vs G4 vs G5 comparison to pick one. If you would rather have Wi-Fi on board, the McGrath NX6W is the same lock with a built-in Wi-Fi radio.
The exterior lock housing is rated IP65, so it handles rain splash and humidity in a sheltered position. The internal unit, which houses the eight AA batteries and the electronics, is not IP rated and must stay dry - which is why the NX6 is a front-door lock with one side facing the weather, not a gate lock. Runs on the McGrath Locks App, McGrath's Australian-supported build of the TTLock platform, with TTRenting and TTHotel available for short-stay and accommodation operators. Full figures are in the NX6 technical datasheet.
Usually ships same day if ordered before 11am AEST (excludes weekends and Queensland public holidays).
The NX6 has Bluetooth on board but no Wi-Fi radio of its own - McGrath's own datasheet lists Wi-Fi as "gateway required". Within Bluetooth range you can lock, unlock, add PINs, issue eKeys and read the activity log with no gateway at all. To do any of that from work, from interstate, or from a holiday-house owner's lounge, a McGrath G3 Ethernet, G4 4G / Wi-Fi or G5 dual-band Wi-Fi gateway bridges the lock's Bluetooth onto your network. What a gateway does, where to put it and what happens when the internet drops are in Chapter 08; the gateway selection guide in Chapter 14 and the G2 vs G5 choice in our TTLock tips post will settle which one. Pairing steps are on page 53 of the TTLock app manual. Browse every gateway and bridge we stock.
The McGrath NX6W is this same lock - same body, same Euro 60/68 mortice, same five access methods, same McGrath Locks App - with a built-in 2.4 GHz Wi-Fi radio, so it joins your network directly with no gateway device. Before you choose it over the NX6, read the battery-drain caution on the NX6W page - a Wi-Fi radio inside the lock costs battery life, and on some units it has been an issue. The remedy recommended for affected units is exactly this configuration - an NX6 with a G5 gateway - which gets you the same remote result with the radio out of the door and on mains power. The Bluetooth-only vs gateway trade-off is laid out in Chapter 14.
Key Features
- 5-in-1 access: PIN code, RFID card or tag, fingerprint, Bluetooth eKey and a mechanical key override - five independent ways through one door. The side-by-side comparison in Chapter 03 shows where each one earns its place; browse everything we stock with PIN code, fingerprint, card or fob and backup key access.
- Gateway-ready remote access: Bluetooth control works out of the box with no gateway. Add a McGrath G3, G4 or G5 gateway (sold separately) and the McGrath Locks App manages the lock from anywhere - the same platform every Wi-Fi capable smart lock on the TTLock ecosystem uses. One gateway can serve several TTLock locks, so a second McGrath lock elsewhere in the house shares it.
- Large body built for retrofit: the 370 mm x 75 mm lock body covers the door prep, face-plate marks and oversized cutouts a previous mortice lock leaves behind, giving a clean finish without a separate scar plate. If your door has a narrow stile, check the stile width first, or look at the slimline range instead.
- SS304 Euro 60/68 mortice with manual privacy bolt: the supplied McGrath Euro 60/68 mortice is a 1.5 mm SS304 stainless steel body with three-point deadbolts and an anti-friction dead latch, tested to 500,000 cycles and rated BHMA Level 2 and Level 3. Lifting the internal lever throws the deadbolts; the thumb-turn snib inside gives a mechanical do-not-disturb. It is a genuine mortice deadbolt, not a spring latch - see why that matters for security.
- IP65 external housing: the outside assembly is IP65 rated for rain splash and humidity in a sheltered entry. The internal unit houses the battery compartment and is not IP rated - it must not be exposed to water. That single fact rules the NX6 out for exposed external gates.
- USB-C emergency power: if the batteries run flat, hold a USB-C power bank to the port on the base of the exterior unit and the lock has enough power to open. There is also the mechanical key, so a flat battery never locks you out.
- Field-reversible handing: one unit suits left- or right-hand opening doors; handing is set during installation. New to the terminology? How to determine your door's handing takes two minutes, and field-reversible vs fixed explains why this matters.
- Anti-peep PIN entry and incorrect-attempt lockout: add random digits before or after your real code so an onlooker cannot read it back, and the keypad locks out after repeated wrong attempts. The six TTLock passcode types (permanent, timed, one-time, cyclic, custom and erase) are explained in Chapter 14 - passcode types; the 24-hour activation rule catches most first-time users, so read it before you hand a code to a guest.
- Passage mode: hold the door in free-entry for business hours or an event, then return it to locked with one command. Note that touch-to-unlock is a separate setting worth reviewing at the same time.
- Unlimited Bluetooth eKeys with an activity log: issue permanent or time-limited eKeys to family, staff, cleaners and guests from the app, revoke them the same way, and see who opened the door and when - the audit trail that settles disputes.
- Australian-supported platform: the McGrath Locks App is McGrath's own branded build of TTLock, supported and distributed here through LSC - read globally proven, locally branded and the supply chain behind every McGrath installation.
Access Methods
How each credential works, and which to lean on for family, guests or staff, is covered in Chapter 03 - Smart Lock Access Methods. The McGrath Locks App is a free download for iOS and Android; the platform behind it is profiled in Chapter 15 - TTLock.
Palm Recognition* Wi-Fi remote access on the NX6 requires a separate McGrath gateway (G3, G4 or G5), sold separately - see Wi-Fi and remote access in Chapter 03. Every other method works out of the box. For built-in Wi-Fi with no gateway, see the McGrath NX6W.
What's in the Box
- Exterior lock assembly (keypad, fingerprint reader, RFID reader, lever)
- Interior lock assembly (battery compartment, lever)
- McGrath Euro 60/68 mortice lock with strike plate and strike pocket
- Installation guide (smart lock manual)
- Drill positioning template
- 2 x mechanical override keys
- 2 x RFID access tags
- Mounting screws and fixings
- Mini security screwdriver for the battery cover
Note: batteries (8 x AA alkaline) are not included. No gateway is included - the G3, G4 and G5 gateways are sold separately.
Suitable Uses
- Residential front doors - timber and aluminium, standard stile: covers doors from 38 mm to 110 mm thick with a 60 mm backset, the most common Australian front-door configuration. Confirm yours with how to measure your backset and the door type compatibility matrix.
- Retrofit over an older mortice lock: the 370 mm body hides the prep left by earlier hardware. Identify what is on the door now with Chapter 02 - mortice lever and escutcheon hardware; if the old holes fall outside the 75 mm body width, a scar plate from the scar and adaptor plate range finishes the job.
- Home offices and small commercial premises: up to 250 PIN codes, 1,000 RFID credentials and 100 fingerprints run a multi-user door without a key register. Passage mode opens the door for trading hours. Which platform suits a commercial site is worth a read if you are comparing brands.
- Airbnb and short-stay properties: the McGrath Locks App supports TTRenting for scheduled guest codes and eKeys. Remote code delivery needs a gateway; on-site codes over Bluetooth do not. Read what changes with a gateway and a PMS, which PMS platforms integrate with TTLock, and Igloohome vs TTLock/McGrath in Chapter 07 before you commit.
- Serviced apartments, motels and hotel rooms: TTHotel adds property management system integration, and the supplied mortice's privacy turnsnib gives guests a mechanical do-not-disturb - with the caveat that an engaged snib blocks every digital credential from outside.
- Bluetooth-only today, gateway tomorrow: works fully on local Bluetooth from day one, and a G5 gateway can be added later for remote access - see what actually changes when you add a gateway. Browse all app-enabled smart locks.
- Sheltered entries only: the IP65 exterior handles rain splash under a porch or awning. It is not for a fully exposed door or an external gate - for those, see the external gate exposed to rain category, and read what coastal conditions do to electronic locks if you are near the beach.
Available Finish Options
Matt Black
(This Product)
STK MLNX6
Silver
(This Product)
STK MLNX6
Finish selection does not affect functionality, compliance, or performance. Both finishes are supplied under this single MLNX6 listing - choose the finish at checkout.
NX Series - Where the NX6 Sits in the McGrath Standard-Stile Range
McGrath's standard-stile hinged-door locks share the McGrath Locks App, the same PIN, RFID and Bluetooth credential set, and the same G3 / G4 / G5 gateways. They differ in body size, what latches or mortices they ship with, whether they read fingerprints, and how remote access is achieved. The bold row is this product.
Narrow aluminium stile? The NX series is a standard-stile family - the McGrath A210, A231 and A236 slimline locks, and the wider narrow-frame range, are built for that. Every McGrath lock we stock is on the McGrath Locks brand page; the brand itself is profiled in Chapter 10.
Accessories and Spares
Everything below is confirmed to suit the NX6. The mortice, cylinders and key blank are specific to the NX6 series; the gateways, power adaptor, RFID credentials and servicing tool are shared across the McGrath range. Browse the full smart lock accessories catalogue for anything not listed here.
The NX6 accepts a standard Euro-profile cylinder in the supplied mortice, so a locksmith can supply an alternative Euro cylinder if your site has particular keying requirements - ask us through Advice and Installation. No scar plate is listed for the NX6 because its 370 mm body is itself the cover; if your door prep is wider than the body, the brand-by-brand scar plate guide shows what is available.
Technical Specifications
Every figure below comes from McGrath's own NX6 datasheet and the Euro 60/68 mortice spec sheet. Terms like backset, centres and stile width are explained in Chapter 02 - Measuring Your Door.
The IP65 rating applies to the external (outside) lock housing. The internal unit - which houses the eight AA batteries and the electronics - is not IP rated and must not be exposed to water or moisture. Install in a sheltered position where the internal unit stays dry. For a door with no overhead protection, or an external gate, choose from the external gate exposed to rain category instead - the McGrath Ascot is the gate lock in this range. Queensland-specific considerations in Chapter 11 cover humidity and storm exposure.
Dimensions
Two drawings matter for the NX6: the lock body, which tells you whether the 370 mm escutcheon fits your door and clears any screen door, and the mortice, which tells you how the door edge must be prepared. Measure your existing door prep against both - bored cylindrical vs mortice door prep explains the difference, and what happens when the backset is wrong is worth two minutes before you drill.
Lock body: 370 mm (H) x 75 mm (W) x 24 mm (D). Outside handle projection 72 mm - the figure to check against your screen door clearance.
Supplied McGrath Euro 60/68 mortice: 95.2 mm overall width, 60 mm backset, 68 mm centre-to-centre (cylinder to spindle), 175.8 mm case height, 52 mm lower fixing distance. Faceplate 255 mm x 24 mm.
Battery, Power and Backup Access
- Powered by 8 x AA alkaline batteries (not included) - twice the usual four, which is what gives the NX6 its long run time on a full-size body. Terry's recommends Duracell alkaline; monitoring and choosing batteries in the McGrath Locks App is covered in our TTLock tips post. How smart locks are powered generally is in Chapter 01 - power.
- Typical battery life up to 18 months based on approximately 10 uses per day. Because the NX6 has no Wi-Fi radio of its own, it avoids the drain a built-in radio adds - the gateway, on mains power, does the network work. The truth about battery life covers what shortens it.
- Battery voltage 6V. The low-battery alert triggers below 4.6V - an audible warning at the lock and a battery indicator in the app. Read how to read a low-battery fault correctly, because a sluggish motor or failed fingerprint reads are usually the batteries, not the lock. The Ch 13 power and battery FAQ answers the common questions.
- USB-C emergency power - if the batteries are flat, hold a USB-C power bank to the port on the base of the exterior unit; the lock powers up long enough to open with any credential. What to do when the battery dies walks through it.
- Mechanical key override via the Euro cylinder works in every power state; two keys are supplied. Where the keyhole is and key hiders smarter than the doormat are both worth a read; every key safe and key hider we stock is in one place.
- Battery changes need the mini security screwdriver supplied in the box; if it goes missing, the McGrath Torx battery-cover screwdriver is the replacement. Power outages do not affect a battery lock at all - only the gateway goes offline.
App Platform and Data Hosting
McGrath smart locks are backed by long-established industry partners and supported locally. McGrath Locks is distributed through LSC, a century-old Australian trade distributor, and installed and serviced by Terry's Locksmiths, 50 years on the front line. Why longevity matters more than features and what happens if a manufacturer discontinues its app are the two questions to ask of any smart lock brand; the McGrath answers are in choosing a smart lock that will still be there.
Frequently Asked Questions
Five pre-purchase questions. Setup, ownership and troubleshooting are in the FAQ tab above, and the general Smart Lock FAQ in Chapter 13 covers the basics.
Only for remote access. Within Bluetooth range you lock, unlock, set PINs, enrol fingerprints, issue eKeys and read the activity log with no gateway and no internet. To do any of that from somewhere else, the NX6 needs a separate McGrath G3, G4 or G5 gateway. If you would rather not have a gateway at all, the McGrath NX6W has Wi-Fi on board. Do you actually need a gateway? answers the question honestly for most households, and the connectivity decision in the Quick Start Guide takes 30 seconds.
Yes. The gateway only carries remote commands. If it loses power or the internet is down, PIN, RFID, fingerprint and Bluetooth all keep working exactly as before, and nobody is locked in or out. Codes you create in the app still follow the platform's own activation rules - see the 24-hour activation rule. Chapter 08 covers what happens when the internet goes down; if a gateway keeps dropping off the network, the cause is almost always the router - see band steering and the Wi-Fi dropout FAQ.
The supplied Euro 60/68 mortice has a manual privacy bolt (turnsnib) thrown by a thumb turn on the inside. When it is engaged, no PIN, tag, fingerprint or eKey will open the door from outside - it can only be released from inside. That is exactly what a motel guest or a bedroom wants, and exactly what a short-stay host does not want a departing guest to leave engaged. Read what the internal snib disables, whether the admin can override it in the app (no - it is mechanical) and how the key override interacts with it.
The NX6 suits standard-stile timber and aluminium hinged doors from 38 mm to 110 mm thick with a 60 mm backset. Three checks: measure the backset (door edge to the centre of the existing cylinder or spindle), confirm the stile is wide enough for the 75 mm body and the 95.2 mm mortice case, and if there is a security screen in front, confirm the 72 mm handle projection clears it. A narrow aluminium stile wants the slimline range instead. Unsure? Book a site survey.
Yes. Time-limited and one-time PIN codes and eKeys are standard in the McGrath Locks App, and TTRenting adds scheduled guest access and PMS connections. Issuing or revoking a code remotely needs a gateway; setting codes on site over Bluetooth does not. Read the important clarification for Australian hosts first, then which PMS platforms integrate, and compare against our primary Airbnb recommendation in Chapter 07 - for a host who wants zero infrastructure at the property, Igloohome's offline codes are sometimes the better fit.
Additional Information
Retrofit suitability: the NX6's 370 mm body is substantially larger than most residential digital locks, and that is the point - it covers the door prep and face-plate marks left by earlier mortice hardware. If your door has visible holes from a previous lock, measure their spread before ordering to confirm the 75 mm body width covers them; if it will not, a correctly sized scar plate is the fix. Identify the old hardware first with Chapter 02 - existing door hardware.
Door compatibility and stile width: the NX6 is designed for standard-stile timber and aluminium doors with a 60 mm backset. On a narrow aluminium stile - common on older heritage-profile aluminium doors - confirm the stile will accept the 95.2 mm mortice case before ordering; Chapter 02 - stile width shows how. Aluminium and narrow-frame doors have their own row in the door type matrix, and the McGrath A210 and A236 exist for exactly that door.
Supplied mortice: the NX6 ships with the McGrath Euro 60/68 mortice - a heavy-duty 1.5 mm SS304 body with three-point deadbolts, an anti-friction dead latch and a privacy turnsnib, tested to 500,000 cycles and rated BHMA Level 2 and Level 3. Lifting the inside lever throws the deadbolts. Replacement bodies, matching override cylinders and key blanks are all in the Accessories and Spares table; the wider mortice locks for smart locks category shows the other McGrath bodies.
Security screen door clearance: the 72 mm outside handle projection means the NX6 stands further off the door face than a standard lever. If a security screen door is fitted, measure the gap between the main door and the screen frame before ordering. The measurement that matters takes one minute; it is the mistake even experienced locksmiths make. If the screen is the door you actually want to secure, the security screen door lock category is the right place.
Installation: the NX6 includes a drill positioning template and an installation guide, and a competent DIY installer can fit it. Terry's still recommends professional installation, because the three-point mortice and its strike must align precisely and door misalignment is the most common cause of a new digital lock that will not lock. When DIY is appropriate, the three most common installation mistakes and poor door preparation or fitment are the reading. For a quote, see Advice and Installation or professional supply and installation.
12-month warranty against defects in materials and workmanship (24-month on ALBION, ASCOT, ASHGROVE, BARDON, GRANGE, HAMILTON, KEDRON, MANLY, SANDGATE, STAFFORD, ULTRA SECUA and WINDSOR models). McGrath Locks will repair, replace, or refund at their discretion. Proof of purchase required for all claims. Returns & Warranty | McGrath Locks Warranty
Download PDF Resources
McGrath's two-page A4 datasheet for the ML-NX6: hardware, enrolment and verification, lock functions, power and operating environment tables, plus the what's-in-the-box graphic. The source for every figure in the Specifications table above.
One-page spec sheet for the ML-SP-M-60/68 mortice supplied with the NX6: materials, cycle test, BHMA ratings, lock case and faceplate dimensions, backset and centres, and the engineering drawing used in the Dimensions section.
The 56-page platform manual behind the McGrath Locks App (generic TTLock branding): registration, adding a lock, eKeys, the six passcode types, card and fingerprint management, Bluetooth unlocking, attendance, system settings and gateway setup. A web viewer is on our TTLock User Manual page.
McGrath NX6 - FAQ, Setup and Owner's Guide
Everything a buyer, installer or owner asks about the NX6, grouped by topic. For the basics that apply to every smart lock, start with Chapter 13 - Smart Lock FAQ and the Ultimate Smart Lock Buyer's Guide. Every McGrath-specific answer below applies equally to the NX6W except where remote access is concerned.
Access and Credentials
Six types: permanent, time-limited (one hour to three years), one-time (valid six hours), cyclic (a daily or weekday window - ideal for a cleaner), custom (you choose the digits and the validity) and an erase code that clears every passcode on the lock. Chapter 14 explains the six passcode types; the manual covers them from page 24. Codes are 4 to 8 digits, with a 4-digit minimum when set in the app, and up to 250 can be live at once. The weekly-cleaner cyclic code is the most under-used feature on the platform.
A permanent passcode created remotely must be used at the keypad within 24 hours of creation or it lapses - the single most common McGrath support call. It is a platform rule, not a fault. The 24-hour activation rule, the activation windows by passcode type and how to stop codes expiring cover it completely.
Anti-peep entry lets you type random digits before and after your real code - the lock only looks for the correct sequence somewhere in what you typed. After repeated wrong attempts the keypad locks out. Fingerprint or RFID avoid the question entirely; PIN vs the other credentials in Chapter 03 weighs them up, and two-factor unlocking can be switched on if you want a code plus a card.
Almost always enrolment. Enrol each finger from three angles - straight, rolled left, rolled right - and enrol a second finger as a fallback. Dry or worn fingertips read poorly regardless of brand. The three-angle enrolment technique fixes most of it; fingerprint management is on page 34 of the manual. The NX6 holds up to 100 fingerprints, and Chapter 14 covers fingerprints, IC cards and other credentials.
The NX6 reads 13.56 MHz MIFARE Classic 1K credentials. Two tags come in the box; extra ISO cards, fobs, wristbands and phone-case stickers are stocked. An existing card from another system will only work if it is the same MIFARE Classic 1K type - many building access cards are not. Each credential is enrolled and revoked individually in the app (card management, page 32), so a lost fob is a thirty-second fix. The full RFID credential range covers every brand we sell.
An eKey is a Bluetooth credential sent to another person's McGrath Locks App account - permanent, time-limited or one-time - and there is no limit to how many you issue. The holder unlocks from their phone within Bluetooth range, or from anywhere once a gateway is fitted. You can name, pause, extend or delete each one and see its unlock history. Chapter 14 - eKeys and page 19 of the manual go deeper. Touch-to-unlock (tap the keypad while your phone is nearby) is a separate setting - here is how to turn it off if it opens the door when you only walked past.
Remote Access and Gateways
For most homes, the G5: it joins either 2.4 GHz or 5 GHz Wi-Fi, so it does not fight your router's band steering. Choose the G4 where fixed internet is unreliable or absent - it carries a 4G SIM as a fallback - and the G3 where the site is cabled and Power over Ethernet is available, which is the commercial and strata norm. All three run from the 240V dual-USB wall adaptor. Chapter 08 has a card on each: G3, G4, G5 - and the blog's G2 card explains the older 2.4 GHz-only bridge, sold under the Lockton E-Series badge on the same TTLock platform.
Within reliable Bluetooth range of the lock - a power point in the hallway inside the front door is the usual spot - and within Wi-Fi range of your router. One gateway can bridge several TTLock locks in range, so a second McGrath lock on a garage or office door shares it. Gateway placement in Chapter 08 and where to position the gateway in the tips post give the rules; the pairing procedure is on manual page 53. Cross-brand interchangeability on the platform is covered here.
Rarely. The usual culprit is a dual-band router that merges 2.4 GHz and 5 GHz under one name and steers the gateway onto a band it cannot use, or a gateway too far from the router. Band steering, how to improve stability and the hardware fix are the three sections to read; two ways to fix band steering gives the router-side steps. The G5's dual-band radio is the reason it is our default recommendation.
It can, slowly, and a drifting clock is what makes a timed code open early or expire late. With a gateway the clock is synced automatically. Without one, open the app beside the lock every few weeks and let it calibrate - clock calibration, the symptoms that point to drift and calibrating without a gateway explain it; the procedure is on manual page 17.
Power and Batteries
Eight AA cells give the NX6's full-size body a 6V supply with plenty of reserve - McGrath rates it at up to 18 months on roughly 10 uses a day. Real life varies with traffic, temperature and whether fingerprint or Bluetooth is the main credential. Use good alkaline cells, never mix old and new, and be wary of rechargeables (their lower cell voltage can trip the low-battery warning early). The truth about battery life and battery management in the app are the two honest reads. For contrast, the NX6W's Wi-Fi radio is why that model can drain faster.
Two options, both built in. Hold a USB-C power bank to the port on the base of the exterior unit - the lock powers up and any credential opens it - or use the mechanical key in the Euro cylinder. Then change all eight cells. What to do when the battery dies and the Chapter 13 power and battery FAQ cover it. The lesson is to act on the low-battery warning rather than wait - electronic locks are not set and forget.
No. The lock runs on its own batteries and does not care about mains power. Only the gateway goes offline, so remote commands queue until it comes back; PIN, tag, fingerprint and Bluetooth carry on. Power outages - what actually happens and Chapter 08's when the internet goes down explain both halves.
Mortice, Door Fit and Installation
Not as supplied. The NX6 ships with, and is cut for, the 60 mm backset / 68 mm centres Euro 60/68 mortice, and there is no 70 mm version of that body. A 70 mm door usually means a different McGrath model - the NX5 or NX1 with the 70 mm Euro mortice or a 60/70 mm adjustable latch - or a locksmith repositioning the mortice pocket. What backset is, backset and smart locks and Chapter 02's backset section cover it; Chapter 12 names the wrong backset as the second most common DIY mistake.
Both are inside the 38 mm to 110 mm range, which is unusually wide - most residential smart locks stop around 55 mm. The supplied fixings and spindle cover the whole range, so a thick solid-timber entrance door that defeats other locks is a straightforward NX6 install. Measure the leaf itself, not the frame: Chapter 02 - door thickness.
The NX6 is field-reversible: handing is set during installation following the supplied guide, and the batteries must be in first because the lock uses its motor to reposition the latch direction. Set the mortice cutout for your handing before drilling - the template shows both. How to determine your door's handing and what happens if you get it wrong are worth reading before you start; the concept is in Chapter 02 - handing.
Almost always spindle or hub position on the mortice, or a strike that does not let the deadbolts throw fully. Chapter 12 walks the three culprits in order - spindle position, backset or latch kit, door misalignment - and its symptom-to-fix table is the fastest route. The blog version is handle still opens when locked; door alignment is the most underestimated factor of all. Still stuck? Call us.
That is what the 370 mm x 75 mm body is for, and it is the reason we send buyers with tired door prep to the NX6 first. Measure the spread of the old holes against 75 mm wide and 370 mm tall; anything inside that envelope disappears. Anything outside it wants a scar plate - what a scar plate is and when you need one. The Installation Gallery tab shows the result on a dozen real doors.
A confident DIYer with a drill, a chisel and the supplied template can, provided the door is sound and hangs true. The mortice pocket is the exacting part - three deadbolts need a strike that lines up. When DIY is appropriate in Chapter 12 is honest about the line; installation quality is also the most underestimated factor in how long the lock lasts. On the Gold Coast, a free site survey and supply-and-install are both available.
Privacy Bolt, Security and Alerts
You cannot, until a valid credential is refused - the bolt is mechanical and the app has no view of it. That is why a departing Airbnb guest who snibs the door on the way out can lock the next guest out until someone attends. Brief guests never to use the thumb turn on departure. How to tell if secure lock is engaged, the real-world perils and best practice for avoiding the headaches are essential reading for any host.
The Euro cylinder sits in the supplied mortice, behind the exterior unit's lower section - where the keyhole is shows the typical arrangement. Two keys are supplied. Spare keys are cut from the NX6 key blank by a locksmith, or replace the cylinder outright with a keyed-alike unit so several NX6 doors share one key. Keep one override key somewhere outside the house - storing the override key explains why, and the McGrath KEYSAFE Bluetooth key safe runs on the same app.
No. McGrath locks do not carry the hardware that setting expects, so enabling it produces phantom alerts from door slams, wind and passing trucks. It is a legacy item in the TTLock platform, not an NX6 feature. Leave it off; if it is already on, turn it off in three steps. Background: McGrath locks do not support Tamper Alert, why enabling it causes phantom alerts and the Chapter 13 tamper alert FAQ. The incorrect-PIN lockout is a separate, genuine function - the two are often confused.
Yes - every unlock is logged against the credential that made it (which PIN, which tag, whose eKey, which fingerprint). Records sync to the app over Bluetooth when you are near the lock, or continuously through a gateway. Searching records is on manual page 23; for a rental, the audit trail for dispute resolution is one of the strongest arguments for a smart lock. For staff, the platform's attendance management turns the same log into a clock-on record.
Short-Stay, Rental and Commercial Use
Yes, with a gateway and a property management system that talks to TTLock - the McGrath Locks App links to TTRenting for exactly this. Without a gateway you can still schedule codes in advance over Bluetooth on your next visit, and what TTLock can do without Wi-Fi is more than most hosts assume. The detail: PMS integration in Chapter 14, property management systems in Chapter 07, and scaling across multiple properties. Run the practical setup checklist before the first guest arrives.
Codes already on the lock keep working - they live in the lock, not in the cloud. What you lose is live remote control - unlocking from your phone, seeing the door in real time, changing codes on the fly - until the gateway reconnects, so set a guest's code before arrival, not at the door; what still works without Wi-Fi is reassuring. The critical scenario: Wi-Fi drops during a guest stay in Chapter 07 and adding Wi-Fi and a gateway - what actually changes set expectations honestly. For a holiday house with poor internet the G4's 4G fallback exists for this; see holiday homes and remote properties.
Transfer the lock to the new owner's McGrath Locks App account rather than sharing your login - the transfer function moves admin rights cleanly and wipes your access. Before you do, delete stale codes and eKeys and consider the erase code. Transferring or re-adding a lock, before you hand over the property and safe use of the erase code at handover are the steps; the manual's transfer procedure is on page 48.
Yes - passage mode holds the lock open so every customer walks in without a credential, and one command puts it back to normal at close. Pair it with a cyclic code for staff and the activity log for a clock-on record. Commercial, office and retail in our platform guide covers the use case. Note this is a light commercial lock: for a fire door, egress path or a genuinely high-traffic entrance, see the fire-rated McGrath models below.
Weather, Placement and Lifespan
No. IP65 covers the external housing only; the internal unit and its battery compartment are not weather rated and must stay dry, which a gate cannot guarantee. A front door under a porch, awning or verandah is fine - a fully exposed door or any gate is not. The McGrath Ascot double-sided gate lock is the model built for that job, and the external gate exposed to rain category collects every option. IP ratings explained in Chapter 11.
Salt air is hard on every electronic lock and McGrath does not publish a salt-spray figure for the NX6, so we will not invent one. The mortice is SS304 stainless, which helps; the zinc-alloy housing wants a sheltered position and an occasional wipe-down with fresh water. Read coastal environments - Gold Coast specific and coastal Queensland is not gentle before choosing any lock for a beachfront door.
The mortice is tested to 500,000 cycles and the electronic lock to 100,000 - at ten uses a day that is decades for the mortice and well over twenty years for the lock. In practice, sun exposure, installation quality and door alignment decide the outcome more than cycle counts. Build quality, cycle ratings and a realistic lifespan expectation set it out, and what happens in five years is the question to ask of the brand as much as the lock.
Platform, App and Support
It is McGrath's branded build of the TTLock platform, supported in Australia by McGrath and LSC. Same lock hardware family, same cloud, same feature set, McGrath's name on the icon and an Australian phone number behind it. TTLock vs McGrath vs Lockton vs Austyle - what's the difference answers it directly; what TTLock is and how the platform works give the background. The TTLock user manual applies in full.
The McGrath Locks App is managed and supported in Australia; the underlying cloud is TTLock's global platform. We publish the trade-offs rather than hide them: TTLock's published vulnerability disclosures in Chapter 14, data sovereignty - where your information goes, local access vs the cloud layer and what this means for your decision. Remember the credentials themselves live in the lock: the cloud is a convenience layer for remote control, not the thing that opens your door.
Terry's, first - we are the local dealer and installer, and we handle the McGrath warranty claim for you through LSC. McGrath's Australian support team handles app and platform queries. This distribution chain is the reason we back the brand for the long term: the supply chain behind every McGrath installation, the installer's perspective and where McGrath fits in. McGrath's brand card is in Chapter 10; every model we stock is on the McGrath Locks brand page.
Choosing Between McGrath Models
Same lock, one difference: the NX6W has a Wi-Fi radio in the door and needs no gateway; the NX6 keeps the radio out of the door and in a mains-powered gateway. The NX6W is simpler to buy; the NX6 plus a G5 is more robust on batteries and lets one gateway serve other TTLock locks too - and it is the remedy McGrath recommends where an NX6W has shown the Wi-Fi battery-drain fault. If you never want remote access, the NX6 alone is the obvious choice. Bluetooth only vs gateway is the neutral read.
Mortice and body. The NX6 ships with the three-point Euro 60/68 deadbolt mortice and its privacy bolt - the most secure latching in the NX family - and the largest body for covering old prep. The NX5 and NX1 give you a choice of tubular latch or single-bolt 60 mm Euro mortice and suit 70 mm backsets. All three share the credential set, the app and the gateways. The Albion drops fingerprint but adds a DDA lever option. See the NX Series table on the main page.
Neither. For an apartment or commercial fire door, McGrath's fire-assessed cohort is the Windsor, Hamilton, Stafford and Bardon; the Hamilton, Stafford and Bardon are also AS 1428.1 DDA-compliant. Chapter 05 - Fire Door Smart Locks, the fire door category, Chapter 09 - DDA and NDIS and DDA smart locks for NDIS housing are the starting points. In a Queensland apartment, read the four strata checks before buying anything.
The Vault Prime Lever Smart Lock is the lower-cost step: PIN, RFID, fingerprint, Bluetooth and key override on a lever body, on Vault's own app (a TTLock-derived platform with its own G5 gateway). What you give up is the three-point SS304 mortice, the privacy bolt, the 370 mm retrofit coverage and the McGrath-branded local support. The Vault range overview and Vault's brand card position it; five questions that decide it will tell you whether the saving is worth it for your door.
Related Products, Guides and Chapters
NX6-suited accessories: Euro 60/68 mortice | keyed alike cylinder | keyed to differ cylinder | key blank | G5 gateway | G4 gateway | G3 gateway | 240V wall adaptor | RFID card | RFID fob | RFID wristband | RFID sticker | Torx battery-cover screwdriver | McGrath KEYSAFE
Other McGrath locks: NX6W | NX5 | NX1 | Albion | A210 | A210DB | A231 | A236 | Kedron deadbolt | Ashgrove deadbolt | X3 deadbolt | Ascot gate lock | Windsor | Hamilton | Stafford | Bardon | all McGrath Locks
Categories: all smart locks | PIN code | fingerprint | card and fob | Bluetooth | Wi-Fi | backup key | app enabled | regular front door | internal office and bedroom | narrow frame | fire door | gateways and bridges | mortice locks | cylinders | key blanks | RFID credentials | key storage
Buyer's Guide chapters: 01 What Is a Smart Lock | 02 Measuring Your Door | 03 Access Methods | 04 Door Types | 05 Fire Doors | 07 Airbnb and Short-Stay | 08 Gateways | 09 DDA and NDIS | 10 Brand Profiles | 11 Australian Standards | 12 Installation | 13 FAQ | 14 TTLock Platform | 15 App Platforms | Quick Start Guide
Blogs: G2 vs G3 vs G4 vs G5 gateways | TTLock tips and tricks | Using TTLock for Airbnb | Do you really need Wi-Fi? | The perils of the internal snib | Mechanical key override | Why smart locks drop off Wi-Fi | Measuring your backset | Door handing in Australia | Screen door clearance | Scar plates | 3 DIY installation mistakes | The realities of electronic locks | How long do digital locks last | Tamper Alert phantom alerts | Turn off Tamper Alert | Terry's, LSC and McGrath | Which platform is right for you | TTLock vs Tuya | Your data and China | Site survey and installation | TTLock user manual
What's in the Box - McGrath NX6 Digital Smart Lock
- Exterior lock assembly - keypad, fingerprint reader, RFID reader, lever and USB-C emergency port
- Interior lock assembly - battery compartment (8 x AA, not included), lever and privacy thumb turn position
- McGrath Euro 60/68 mortice lock (part no. ML-SP-M-60/68) with strike plate and strike pocket
- Installation guide (smart lock manual)
- Drill positioning template
- 2 x mechanical override keys
- 2 x RFID access tags (13.56 MHz MIFARE)
- Mounting screws and fixings
- Mini security screwdriver for the battery cover
Batteries (8 x AA alkaline) and the gateway. Remote access needs a separate McGrath G3, G4 or G5 gateway and its 240V wall adaptor - do you need one? Extra RFID fobs and cards are sold separately. The McGrath Locks App is a free download for iOS and Android
- software installation, manual page 4, then adding the lock, page 15. McGrath NX6 - Real Installations
Twelve genuine NX6 installations - eleven by Terry's Locksmiths across the Gold Coast and one customer self-install in Melbourne - on timber, aluminium and glass-panel entry doors. Note how the full-size body sits on retrofit doors, and how the supplied mortice's latch plate and privacy thumb turn present from inside. Thinking about your own door? Why Gold Coast customers trust Terry's, or go straight to Advice and Installation.
McGrath NX6 - Dimensions
Both manufacturer drawings at full width. Backset is the distance from the door edge to the centre of the cylinder or spindle - how to measure it; the other terms are in Chapter 02 - Measuring Your Door.
Lock Body
Supplied Euro 60/68 Mortice Lock (ML-SP-M-60/68)
PDF Files - McGrath NX6 Digital Smart Lock
McGrath's two-page A4 datasheet for the ML-NX6: hardware, enrolment and verification, lock functions, power and operating environment tables, plus the what's-in-the-box graphic. Specifications are on page 2.
One-page spec sheet for the ML-SP-M-60/68 mortice supplied with the NX6: SS304 materials, 500,000-cycle test, BHMA Level 2 and 3, lock case and faceplate dimensions, 60 mm backset and 68 mm centres, supplied accessories and the engineering drawing.
The 56-page platform manual behind the McGrath Locks App (generic TTLock branding, 2019 edition - the app has gained features since): registration and login, adding a lock (p.15), clock calibration (p.17), eKeys (p.19), the six passcode types (p.24-29), card management (p.32), fingerprint management (p.34), Bluetooth unlocking (p.35), attendance, transferring a lock (p.48) and gateway setup (p.52-54). Newer features are covered in our TTLock tips and tricks post.
McGrath Locks Warranty
Warranty Summary
How to Make a Claim
- Contact Terry's Tradies Pty Ltd and its associated websites, trading names, and subsidiaries (the place of purchase) within the applicable warranty period.
- Supply your proof of original purchase - a receipt or tax invoice is required.
- Provide a clear description of the fault and your contact details.
- You may be asked to return the product for assessment before a remedy is determined.
- McGrath Locks will, at their discretion, repair the product, replace it with the same or an equivalent model, or provide a refund of the purchase price.
Exclusions
This warranty does not cover:
- Normal wear and tear
- Products that have been disassembled
- Damage caused by improper handling, incorrect installation, misuse, abuse, neglect, modification, or accident
- Installation by unlicensed persons (including non-licensed locksmiths or technicians)
- Products not used in accordance with the supplied instructions
- Cosmetic damage that does not affect functionality
- Labour or installation costs related to the removal or reinstallation of products
- Exposure to conditions outside normal environmental use
- Work completed before warranty approval
- Damage caused by battery leakage, battery failure, or force majeure
Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if they fail to be of acceptable quality and the failure does not amount to a major failure. This warranty is provided in addition to your rights and remedies under the Australian Consumer Law.
Confused? Overwhelmed? We get it.
Choosing the right smart lock can be genuinely tricky - door types, backsets, app platforms, compatibility with your existing hardware... there is a lot to consider. We have decades of experience fitting locks of all types, including smart locks, and we are happy to help.
Our expert recommendation service is free. Upload a few photos of your door and describe what you need, and one of our qualified locksmiths will give you a personalised recommendation.
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A few clear shots of your door, lock and frame - inside and out.
2. We assess
Our locksmith reviews your setup and requirements - door type, weather exposure, how you want to use it.
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A personalised recommendation tailored to your door, budget and needs. No pressure, no upsell.
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