McGrath 60/50 Spindle Mortice Lock (Keyless) - 60mm Backset - 8mm High Spindle - 180mm Faceplate - Suits NX5
The McGrath MLM6050HSS180 is a keyless 60/50 spindle mortice lock body - the mechanical case that sits inside the door edge and carries the latch and deadbolt for McGrath NX5 smart locks. It has a 60mm backset, an 8mm square spindle hub in the high spindle position and a 180mm x 22mm satin stainless steel faceplate. It is the add-to-cart option: the 147mm body ships in the NX5 box when you choose the mortice fitment, and this longer-faceplate version is for a door whose existing pocket was cut for a 180mm plate.
It is a lock body only. There are no electronics, no batteries and no cylinder in it. The smart lock drives the latch and deadbolt through the 8mm square spindle, and the mechanical key override lives in the smart lock's own escutcheon cylinder above the handle - not in this case. That is why the faceplate has no keyhole, and it is what separates the 60/50 body from McGrath's Euro 85 bodies: no cylinder aperture and no pitch measurement. The McGrath Mortice Locks Guide covers the whole family, and why there is no keyhole explains the keyless format.
Buy this body on its own when you are replacing a worn case under an existing NX5, converting a door that already has a 60mm-backset mortice pocket, or fitting a second door. Check the backset first (how to measure your backset) and make sure you have the high spindle version - the low spindle body for the NX1 and Albion looks the same on the shelf and will not line up. High spindle or low spindle on the guide, and the note below, explain the difference.
Usually ships same day if ordered before 11am AEST (excludes weekends and Queensland public holidays).
This is the mechanical case that goes inside the door. It has no keypad, fingerprint reader, cylinder or electronics of its own and does nothing until a host smart lock is fitted over it. For the complete lock see McGrath NX5 - choose the mortice fitment on the NX5 page and the 147mm version of this body is included in the box. Browse the full range in Mortice Locks for Smart Locks.
Made for the McGrath NX5 - the lever spindle on the NX5 comes through at the high follower position, which is where this body's hub sits. It is not the body for the NX1 or Albion; those take the low spindle 60/50 body. If your NX5 door is cut for a Euro case instead, the NX5 also accepts the 85mm-pitch Euro 85 60mm and Euro 85 70mm bodies - see the NX5 fitment section.
Not the size of the spindle - both 60/50 bodies use the same 8mm square spindle and the same round follower. The only difference is where that follower sits in the case. On a high spindle body it sits just under the latch, where the NX5's spindle comes through; on a low spindle body it sits well down the case, where the NX1 and Albion spindles come through. This is the high spindle body. Fit the wrong one and the spindle will not reach the hub, so the handle turns nothing. The item code tells you which is which: H for high (MLM6050HSS147 / MLM6050HSS180), L for low (MLM6050LSS147 / MLM6050LSS180). Full explanation: High Spindle or Low Spindle on the McGrath Mortice Locks Guide.
A 60/50 spindle mortice has no cylinder aperture and no pitch measurement, so the faceplate carries a latch and a deadbolt and nothing else. The mechanical key override on the McGrath NX5 is in the lock's own escutcheon cylinder above the handle - the key turns the smart lock, and the smart lock turns the spindle. That is also why the NX5 key blank and NX5 keyed-to-differ cylinder belong to the smart lock, not to this body: they never touch the mortice. If you are looking at a McGrath body with a keyhole in the faceplate, it is a Euro 85 or ANSI body, not a 60/50 - check for a keyhole is the fastest family test. More on where override keyholes hide: Where is the keyhole? and why there is no keyhole.
Key Features
- Keyless 60/50 spindle mortice body made for the NX5 - spindle hub in the high spindle position so the lock's lever spindle lands on it
- Spindle-driven latch and deadbolt: the smart lock does the work through the 8mm square spindle, so there is no cylinder to specify, key or maintain in the door
- Standard 60mm backset - the most common Australian residential size, so it suits most hinged timber doors (standard backset sizes)
- 180mm faceplate - covers the taller cut-out left by an older mortice lock; same case and mechanism as the 147mm body
- SS304 stainless steel case, latch and bolt with a satin stainless faceplate - the same grade McGrath uses across its mortice range
- Cycle tested to 500,000 operations
- Same body McGrath supplies with the NX5 mortice fitment, so a replacement is a straight swap rather than a re-cut
What's in the Box
- 60/50 spindle mortice lock body (latch and deadbolt)
- 180mm x 22mm satin stainless steel faceplate
- Strike plate
- Fixing screws
The smart lock itself, its escutcheon cylinder and keys. The NX5 is sold separately; if you buy the NX5 and choose the mortice fitment, the 147mm version of this body comes in that box.
Suitable Uses
- Residential hinged doors fitted with, or being converted to, an NX5 - the body is rated for residential duty, not high-traffic commercial doors
- Replacing a worn 60/50 body under an existing NX5 without disturbing the smart lock - measure the faceplate you have first (measure the faceplate)
- Doors already cut with a 60mm-backset mortice pocket sized for a 180mm faceplate (mortice lever and escutcheon doors and mortice with longplate furniture are the usual starting points)
- New installs where the door is being mortised for an NX5 rather than bored for a tubular latch - see bored cylindrical vs mortice door prep
- Second and subsequent doors on the same platform where the existing pocket is the longer 180mm cut - one body per door
Sliding or bifold doors (a hook body is needed - see the 28mm and 35mm Euro 85 hook bodies); the NX1 and Albion (wrong spindle position - use the low spindle body); doors already cut for a Euro 85 case with an 85mm-pitch cylinder hole (the 60mm and 70mm Euro 85 bodies cover those); and the NX6 / NX6W, which take their own Euro 60/68 three-point body. Check your door type against the door-type compatibility matrix.
Available Finish Options
Satin Stainless Steel
(This Product)
STK MLM6050HSS180
Finish selection does not affect functionality, compliance, or performance.
McGrath Mortice Lock Family
McGrath makes five mortice families. The four 60/50 spindle bodies (high or low spindle, 147mm or 180mm faceplate) are the keyless ones; the Euro 85, Euro 85 hook, Euro 60/68 and ANSI bodies all take a cylinder. This body is bolded. The five families at a glance table on the McGrath Mortice Locks Guide compares them side by side, and the range gallery shows all sixteen bodies photographed. Browse the mortice locks category for stock.
Accessories and Spares
Everything below is confirmed for the NX5 platform. Note which items serve the smart lock rather than this body - the key blanks and cylinders in particular fit the escutcheon on the lock, not the mortice.
Full Specifications
Dimensions
Measure the door before ordering: backset (B) from the door edge to the centre of the spindle, then the faceplate height (E) on any existing pocket. The dimension key on the McGrath Mortice Locks Guide explains every letter, and measure the backset / measure the faceplate walk through a fitted door.
Frequently Asked Questions
Match it to the lock, not the door. The NX5 takes a high spindle body; the NX1 and Albion take a low spindle body. This is the high spindle version, so it is for the NX5. The spindle is 8mm square on both; only the follower position differs - see the note above and high spindle or low spindle.
Yes - choose the mortice fitment on the NX5 and MLM6050HSS147 is the body in the box. This 180mm-faceplate version is the add-to-cart alternative for a pocket cut longer than 147mm; everything except the faceplate length is the same. Choose the tubular latch on the NX5 instead and no mortice is supplied at all.
Into the smart lock. The NX5 carries its own escutcheon cylinder above the handle, and the key turns that - the mortice is driven by the lock through the spindle, so it never needs a cylinder of its own. Where is the keyhole? shows where override cylinders sit on common lock formats, and why there is no keyhole covers the 60/50 specifically.
Measure from the edge of the door to the centre of the spindle hole (or the centre of the existing handle). 60mm and 70mm are the two common Australian sizes; this body is 60mm only. How to measure your backset shows the method, what happens when the backset is wrong explains why it matters, and Chapter 02 - Backset covers the aluminium-door sizes as well.
If the door is already cut, measure the existing faceplate pocket top to bottom and buy the matching length: 147mm is the standard supplied with the NX5, 180mm covers the taller cut-out an older lock may have left. On a fresh mortise either works; the 147mm is the smaller cut. The 180mm faceplate covers a taller cut-out left by an older mortice lock; the mechanism and case are identical to the 147mm body. 147mm or 180mm faceplate on the guide has the decision in one place; the other length is MLM6050HSS147.
Additional Information
Before ordering, confirm what is fitted: count the bolts (a 60/50 has a latch and one deadbolt), check for a keyhole (a 60/50 has none), measure the backset and measure the faceplate. The full four-step method is how to identify the body you already have. If you are unsure which smart lock is on the door, the model name is on the escutcheon.
On a pair of rebated doors the faceplate and strike have to step around the rebate. The McGrath 60/50 rebate kit (MLSPRK147) is cut for the 147mm faceplate; it does not fit the 180mm plate, so a rebated pair is normally done with the 147mm body. Other rebate parts are in rebate kits and strikes for smart locks.
Fitting a tubular-latch smart lock to a bored door is a handy-owner task; cutting or enlarging a mortice pocket and getting the spindle to land on the follower is not. The two things that go wrong are the spindle position (handle turns but nothing moves and Chapter 12 - wrong spindle position) and a strike that does not line up (door misalignment). When DIY is appropriate sets out the line, and our advice and installation service covers the Gold Coast.
Because the 60/50 has no cylinder, every key-related spare on the NX5 platform - key blanks and replacement cylinders - is a smart lock part. They are listed in Accessories and Spares so you can find them, and in the cylinders and barrels and keys and key blanks categories, but none of them fits the mortice.
McGrath Locks is the brand we recommend most often for hinged residential doors - the McGrath brand profile explains why, and the mechanical layer explains what a mortice body does under any smart lock. Two honest gaps: McGrath does not quote a deadbolt throw for the 60/50 (what bolt throw is if you want to measure your own), and no fire test result is published for it - talk to us before fitting one to a fire door.
Warranty
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
McGrath MLM6050HSS180 - FAQ, Fitment and Owner's Guide
Everything a buyer, installer or owner asks about the 60/50 spindle mortice body, answered in one place. For the wider smart lock questions see Chapter 13 - Smart Lock FAQ and the Smart Lock Buyer's Guide; for the whole McGrath mortice range see the McGrath Mortice Locks Guide.
Fitment and Compatibility
No. The NX1 and Albion take the low spindle body (MLM6050LSS180); this one is the high spindle body for the NX5. The cases look the same and the item codes differ by one letter - H for high, L for low - so check the code, not just the backset and faceplate. High spindle or low spindle has the photographs side by side.
It turns the spindle. The smart lock puts an 8mm square spindle through the door into the round follower on this body; turning the lever or driving the motor rotates the follower, which works the latch and throws or withdraws the deadbolt. Nothing electrical is in the mortice - it is the same mechanical arrangement Chapter 01 describes as the mechanical layer, with the smart lock replacing the cylinder as the thing that drives it.
Only when the door is already cut for a Euro case: a pocket with an 85mm-pitch cylinder hole below the spindle and a 240mm faceplate. The Euro 85 60mm and Euro 85 70mm bodies fill that cut and the NX5 drives them the same way. On a door cut for a 60/50 body, or a fresh mortise, stay with this body - it is the smaller cut and needs no cylinder. The NX5 fitment section pictures all four bodies together.
Not that we stock. The Lockton SML-H bodies are Euro-profile cases that map onto McGrath's Euro 85 series, not onto the keyless 60/50 - Lockton Euro smart mortice bodies lists the pairings. The 60/50 is specific to the NX5 spindle position, so the right replacement is this body or its 147mm-faceplate sibling.
Backset, Faceplate and Door Preparation
Not in the 60/50 family; all four bodies are 60mm. For an NX5 on a 70mm door, choose the tubular latch fitment instead - the supplied adjustable 60/70mm latch covers both sizes on a bored door - or, if the door is cut for a Euro case, use the Euro 85 70mm body. Standard backset sizes in Australia and backset and smart locks explain the options.
Take the 180mm body (MLM6050HSS180) and let the longer faceplate cover the pocket; a 147mm plate would leave the ends of the old cut exposed. If the pocket is longer than 180mm, the door was probably cut for a Euro or ANSI body - measure the faceplate has the faceplate-to-family lookup, and a scar plate may be needed to cover the difference.
The 14mm-wide case fits any door the host lock itself will fit; the thickness limit is set by the smart lock and its spindle, not by this body. Check the door-thickness range on the NX5 page and Chapter 02 - Door thickness before ordering.
McGrath does not state a handing or a reversal procedure for the 60/50 body. If the latch bevel is the wrong way for your door once the body is in, ask us before forcing anything. Chapter 02 - Handing explains how handing is described.
Yes, but it is a mortising job: a 100mm x 80mm x 14mm pocket in the door edge, a recess for the 180mm faceplate, and a strike cut in the frame. Bored cylindrical vs mortice door prep shows the two formats. Most owners are better off with the tubular latch fitment on a fresh door and a locksmith for a mortice conversion - see when DIY is appropriate.
Keyless Body, Key Override and Consumables
No - there is no cylinder aperture in the case and no pitch to put one on. The mechanical key on the NX5 is in the smart lock's escutcheon, and the key override blog explains how that works, including what happens when the battery dies. If you need a keyed mortice body for a different purpose, that is the Euro 85 or ANSI families - the five families compares them.
None go with the body - they go with the NX5. The NX5 key blank and NX5 keyed-to-differ cylinder fit the escutcheon on the lock. They are listed under Accessories and Spares because buyers look for them here, but the mortice never sees a key. Categories: keys and key blanks and cylinders and barrels.
60/50 is McGrath's family name for this body, carried in the item code MLM6050. The figures that matter when you order are these: the backset is 60mm, there is no pitch because there is no cylinder, and the four members differ only by follower position (H or L) and faceplate length (147 or 180). 60/50 Spindle Mortice (Keyless) on the guide is the family entry.
Installation and Troubleshooting
Almost always the spindle is not engaging the follower: either the wrong body (high vs low spindle) or the spindle is too short for the door. Check the item code first, then the spindle length against the door thickness. Mistake 1 - handle still opens and Chapter 12 - wrong spindle position walk through it; the symptom-to-fix table covers the rest.
Usually not - it is the strike or the door. A bolt that binds is hitting the edge of the strike opening, which means the door has dropped or the strike was cut off-centre; a smart lock will strain its motor and drain batteries fighting it. Door misalignment not addressed explains the fix, and poor door preparation covers the prep side.
Yes - our advice and installation service covers mortice conversions and replacements on the Gold Coast, and it is the sensible route for any door that has not been mortised before. When DIY is appropriate - and when it is not sets out where the line falls.
Buying, Warranty and the Wider Range
Twelve months against defects in materials and workmanship, the standard McGrath term. The 24-month term applies to named smart lock models only - the Albion is on that list, but its mortice body is not. See the warranty section for the full wording.
Sliding and bifold doors need a hook body - the 28mm or 35mm Euro 85 hook - not a swing latch. An outdoor gate is a question for the smart lock's weather rating rather than the body, and the NX5 is residential hinged-door lock. For fire doors, no fire test result is published for the 60/50 body, so talk to us before specifying one - the door-type compatibility matrix is the starting point.
It is the only keyless one. The Euro 85 series (28 to 70mm backsets, 85mm pitch, 240mm faceplate) and the Euro 85 hook bodies serve the A210, A231 and A236 (and the Euro 85 60mm and 70mm also suit the NX5); the Euro 60/68 three-point body is the NX6 and NX6W part; the ANSI F05 and F54 are Grade 1 commercial bodies for the Bardon and other ANSI platforms. The five families at a glance compares every figure, and the family table above links each listing.
Related products, guides and chapters
- Host locks: McGrath NX5 - NX5 fitment section
- 60/50 bodies: MLM6050HSS147 (high, 147mm) | MLM6050HSS180 (high, 180mm) | MLM6050LSS147 (low, 147mm) | MLM6050LSS180 (low, 180mm)
- Rebate kit: MLSPRK147 - 147mm faceplate | Tubular latch alternative: MLATL6070SS
- Other McGrath families: Euro 85 28-50mm | Euro 85 60mm | Euro 85 70mm | Hook 28mm | Hook 35mm | Euro 60/68 (NX6) | ANSI F05 | ANSI F54
- Categories: Mortice Locks for Smart Locks | Rebate Kits and Strikes | Tubular Latches | Cylinders and Barrels | Keys and Key Blanks
- Guide: McGrath Mortice Locks Guide - mortice anatomy | dimension key | five families | 60/50 spindle mortice | high vs low spindle | 147 or 180mm faceplate | no keyhole | range gallery | identify your body | FAQ
- Blogs: Measuring Your Lock Backset | Mechanical Key Override on Smart Locks | What Is Bolt Throw | Smart Lock Not Locking? 3 DIY Mistakes
- Buyer's Guide: Ch 01 - mechanical layer | Ch 02 - backset | Ch 02 - mortice lever doors | Ch 04 - compatibility matrix | Ch 10 - McGrath | Ch 12 - installation and troubleshooting | Ch 13 - FAQ
What's in the Box - McGrath MLM6050HSS180
- 60/50 spindle mortice lock body (latch and deadbolt)
- 180mm x 22mm satin stainless steel faceplate
- Strike plate
- Fixing screws
McGrath MLM6050HSS180 - Dimensions
Measuring a fitted door: measure the backset, measure the faceplate and how to measure your backset. Choosing the length: 147mm or 180mm faceplate.
McGrath MLM6050HSS180 - Specifications
Dimension letters follow the generic McGrath mortice drawing in Dimensions - see the Dimensions tab for the keyed table. Compare every McGrath body in the five families at a glance.
McGrath 60/50 Spindle Mortice Range - Product Photographs
All four keyless 60/50 bodies, photographed from the same angle so the follower position and faceplate length can be compared. This listing is MLM6050HSS180 (highlighted). The same photographs appear in the range gallery on the McGrath Mortice Locks Guide.
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.
Get Your Free Recommendation →How it works - three easy steps:
1. Upload photos
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.
3. You get a recommendation
A personalised recommendation tailored to your door, budget and needs. No pressure, no upsell.
Also useful while you are deciding:




