
Lockwood 3541 Short Backset Mortice Deadlock Cylinder & Cylinder Turn (Fabricator) - Satin Chrome
The Lockwood 3541 Short Backset Mortice Deadlock with Cylinder and Cylinder Turn is a compact locking solution designed for narrow stile sliding and swing doors. It features a swing-bolt deadlocking mechanism that securely engages into a compatible strike.
This configuration includes both cylinder and internal cylinder turn operation, allowing flexible access control from both sides. It forms part of the Lockwood 3540 Series Synergy mortice lock range, widely used in commercial aluminium door systems.
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Key Features
- Short backset mortice deadlock for narrow stile doors
- Swing-bolt deadlocking mechanism for secure engagement
- Dual operation via external cylinder and internal cylinder turn
- Compatible with restricted keying systems
- Reversible handing for flexible installation
- Stainless steel deadbolt for durability
- Suitable for sliding and swing door applications
- Tested to Australian Standard requirements
Suitable Uses
- Commercial aluminium doors
- Narrow stile door applications
- Retail and office entry doors
- Applications requiring dual cylinder access
- New installations and retrofit upgrades
Specifications
Item Code Family - Lockwood 3541 Mortice Deadlock Cylinder Turn Variants
Frequently Asked Questions
Does this include cylinders?
Yes, this configuration includes cylinder and internal cylinder turn operation.
Is this suitable for sliding doors?
Yes, it is designed for sliding and narrow stile door applications.
Can this be used with restricted key systems?
Yes, it is compatible with restricted keying cylinders.
Additional Information
- Commonly used in Australian commercial aluminium door systems.
- Short backset design suits narrow stile profiles.
- Dual cylinder functionality allows flexible access control.
- Correct strike selection is critical for proper locking performance.
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.