McGrath X3 Digital Smart Deadbolt
The McGrath X3 is a compact digital smart deadbolt designed to add secure, keyless access to hinged timber and aluminium doors without replacing existing handle hardware. It is ideal as a primary deadbolt or as a secondary locking point paired with a passage or privacy handle.
Managed through the McGrath Locks App using Bluetooth as standard, the X3 allows access via PIN codes, RFID credentials, fingerprint recognition, Bluetooth eKeys, and a mechanical key override. Optional remote access can be enabled by pairing the lock with a compatible McGrath Locks Wi-Fi gateway.
Usually same day if ordered before 11am AEST (excluding weekends and QLD public holidays)
Available Colour Variants
Matt Black
Silver / Satin Nickel
Finish selection does not affect functionality, compliance, or performance.
Key Features
- Digital deadbolt-only smart lock – retains existing handle hardware.
- Adjustable 60 mm / 70 mm backset deadbolt for retrofit flexibility.
- 6 access methods: keypad PIN, RFID card or tag, fingerprint, Bluetooth eKey, mechanical key, optional Wi-Fi.
- Low-profile exterior body with minimal projection.
- Bluetooth management via McGrath Locks App.
- Optional Wi-Fi remote access via compatible McGrath Locks gateway.
- Passage mode (bolt remains retracted when enabled).
- Anti-peep PIN entry and incorrect attempt lockout.
- Internal privacy button – restricts access to Admin and mechanical key only.
- Audit trail available within the mobile app.
- IP65 rated external housing for sheltered installations.
Access Features
Battery, Power & Backup Access
- Powered by 4 × AA alkaline batteries (not included).
- Typical battery life up to 12 months (based on approximately 10 uses per day).
- Low battery alerts provided audibly at the lock and within the app.
- USB-C emergency power input allows temporary operation using a power bank.
- Mechanical key override ensures access in all power conditions.
- Terry’s Locksmiths strongly recommends the use of Duracell batteries.
Wi-Fi Remote Access (Optional)
This smart lock does not include native Wi-Fi connectivity. Remote access and management features are available only when the lock is paired with a compatible McGrath Locks gateway. When a gateway is installed, users can remotely unlock the door, issue or revoke access credentials, and view access activity through the McGrath Locks App from anywhere with an internet connection. For a detailed explanation of gateway types, capabilities, and selection guidance, see Differences Between McGrath G2, G3, G4 and G5 Gateways .
Specifications
Dimensions

All dimensions shown are in millimetres.

If this model isn’t the right fit for your door or application, we stock a broader range of digital smart deadbolts suited to different door constructions, backsets, and installation requirements.
View all smart deadbolt options
What’s In The Box
- Exterior deadbolt assembly
- Interior deadbolt assembly
- Adjustable deadbolt (60 mm / 70 mm)
- Door position sensor
- Installation guide
- Drill positioning template
- 2 × mechanical keys
- 2 × RFID access tags
- Mounting screws
The McGrath Locks mobile app is hosted on Australian-based servers and operates under Australian data jurisdiction. User data, access credentials, and system records are not hosted in overseas or opaque jurisdictions, addressing common concerns around offshore data storage and security.
McGrath smart locks are backed by long-established industry partners and supported locally. To learn more about why we’re confident backing McGrath smart locks long-term, read: Why Terry’s Locksmiths, LSC & McGrath Locks Give Long-Term Confidence
What’s In The Box
- Exterior deadbolt assembly
- Interior deadbolt assembly
- Adjustable deadbolt (60 mm / 70 mm)
- Door position sensor
- Installation guide
- Drill positioning template
- 2 × mechanical keys
- 2 × RFID access tags
- Mounting screws
Warranty
This product is covered by the manufacturer’s warranty provided by McGrath Locks. Warranty terms, conditions, and coverage periods may vary by product.
For full and current warranty details, please refer to the official McGrath Locks warranty page:
McGrath Locks – Warranty Information
1 Review Hide Reviews Show Reviews
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X3 Digital 60/70mm Adjustable Deadbolt
Found the product does all that is stated by many reviews. The significant issue found during the installation was the size (length) of the three 5mm screws that attach the “Back body” to the mounting plate. The screws provided are not long enough to perform the necessary action. I am not sure if others have found the same issue.
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