Lockwood 3741 Short Backset Mortice Deadlock Single Cylinder (Timber) - Satin Chrome
The Lockwood 3741 Short Backset Mortice Deadlock (Single Cylinder) is designed for timber doors where narrow stile conditions prevent the use of standard backset locks. This version provides key access from one side with internal turn operation.
It features a positive action swing bolt that engages securely into a strike when thrown, delivering dependable deadlocking performance for both sliding and hinged door applications.
Part of the Lockwood Synergy mortice lock range, this model is widely used in commercial environments requiring controlled internal access.
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Non-Returnable Item: This product is a special order and is not returnable.
Key Features
- Short backset design for timber narrow stile doors
- Single cylinder operation with internal turn
- Positive action swing bolt deadlocking mechanism
- Suitable for sliding and hinged door applications
- Heavy duty construction for commercial environments
- Part of Lockwood Synergy mortice lock range
Suitable Uses
- Timber narrow stile doors
- Commercial offices and internal secure areas
- Retail and shopfront environments
- Sliding door lock applications
- Applications requiring internal thumb turn operation
Full Specifications
Frequently Asked Questions
Does this include a cylinder?
Yes, this version is designed for single cylinder operation with internal turn.
Can this be used on sliding doors?
Yes, when installed correctly with suitable strike configuration.
What is a common installation mistake?
Incorrect strike alignment can prevent proper bolt engagement.
Additional Information
- Commonly used in Australian commercial timber door applications.
- Provides internal thumb turn convenience with external key security.
- Short backset solves installation issues in narrow door profiles.
- Incorrect cylinder or turn selection can affect usability.
Lockwood branded products purchased new in Australia from authorised resellers are covered against defects in materials and workmanship for:
- Mechanical components: 25 years
- Electrical and electronic components: 2 years (excluding batteries)
Lockwood Synergy Mortice Locks Catalogue
Lockwood Synergy Mortice Locks Catalogue
Lockwood Warranty
Lockwood branded products are covered by manufacturer warranties issued by ASSA ABLOY Australia Pty Ltd. Warranty periods vary by product type, with separate cover for mechanical components, electrical and electronic parts, keys, and finishes.
The summary below sets out the standard warranty structure. All warranty claims are handled by Terry's Tradies Pty Ltd and its associated websites, trading names, and subsidiaries. Full terms and exclusions are set out in the official Lockwood warranty document linked at the base of this page.
Warranty Summary
Finish Coverage Guide
- Everbrass finishes: up to 25 years against corrosion, tarnishing and discolouration.
- Stainless steel, polished stainless steel, chrome plating and anodised finishes: typically up to 10 years.
- PVD and VIVID finishes: typically up to 10 years.
- Symmetry range finishes: typically up to 5 years.
- Decorative finishes (Antique Copper, Architectural Bronze, Oil Rubbed Bronze, Aged Brass, Polished Brass, Satin Brass and related variants): typically up to 2 years against corrosion.
- Unlacquered brass finishes naturally age and change appearance over time. This is not considered a defect.
- Tea staining of stainless steel is not covered where the required cleaning and maintenance have not been followed.
How to Make a Claim
- Contact Terry's Tradies Pty Ltd and its associated websites, trading names, and subsidiaries with your proof of original purchase.
- Keep the product securely packed and clearly identified, ready for assessment.
- Where a claim is escalated to the manufacturer, ASSA ABLOY may issue a case number before goods are returned.
- ASSA ABLOY assesses the claim and determines repair, replacement with the same or closest equivalent product, or refund of the purchase price.
Exclusions
- Normal wear and tear.
- Misuse, abuse, accidental damage or use outside published specifications.
- Improper maintenance or failure to follow care instructions.
- Unauthorised modification, repair or use of non-genuine parts.
- Exposure to corrosive environments including coastal air, salt spray, chemicals or pollution.
- Removal, refitment or associated labour charges.
- Products not originally sold in Australia through authorised channels.
These manufacturer warranties apply in addition to your rights under the Australian Consumer Law. Our goods come with guarantees that cannot be excluded under the ACL. You are entitled to a replacement or refund for a major failure and to compensation for any other reasonably foreseeable loss or damage. Where a failure does not amount to a major failure, you are entitled to have the goods repaired or replaced.
