
Lockwood 3541 Short Backset Mortice Deadlock & Cylinder Turn (Fabricator) - Satin Chrome
The Lockwood 3541 Short Backset Mortice Deadlock with Cylinder Turn is designed for narrow stile doors requiring a compact, secure locking solution. It features a swing-bolt deadlocking mechanism that engages into a compatible strike for secure door locking.
This configuration includes a cylinder turn for internal operation and is part of the Lockwood 3540 Series Synergy mortice lock range, widely used across 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
- Cylinder turn included for internal operation
- Compatible with Lockwood 3540 Series cylinders
- Suitable for sliding and swing door applications
- Tested to Australian Standard requirements
- Compatible with restricted keying systems
- Part of the Lockwood Synergy mortice lock system
Suitable Uses
- Commercial aluminium doors
- Narrow stile door applications
- Retail and office entry doors
- Applications requiring internal thumb turn locking
- New installations and retrofit upgrades
Specifications
Item Code Family - Lockwood 3541 Mortice Deadlock Cylinder Turn Variants
Frequently Asked Questions
Does this include a cylinder?
This configuration includes a cylinder turn, but cylinder compatibility should be confirmed depending on application.
Is this suitable for sliding doors?
Yes, it is commonly used on sliding and narrow stile doors.
Can this be used with restricted key systems?
Yes, it is compatible with restricted keying cylinders.
Additional Information
- Commonly specified in Australian commercial aluminium door systems.
- Short backset design allows installation in narrow profiles.
- Correct strike selection is essential for proper deadbolt engagement.
- Widely used in retrofit and new construction projects.
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 Overview
Lockwood branded products are covered by manufacturer warranties issued by ASSA ABLOY Australia Pty Ltd. Warranty periods vary depending on product type, mechanical components, electrical elements, and finish category.
This overview summarises the structure of Lockwood warranty coverage. Full terms, exclusions and claim procedures are set out in the official Lockwood Warranty document.
Warranty Periods 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.
- Decorative finishes including 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 will naturally age and change appearance over time. This is not considered a defect.
- Tea staining of stainless steel is not covered where cleaning and maintenance have not been followed.
What the Warranty Covers
- Defects in material and workmanship during the applicable warranty period.
- Assessment by ASSA ABLOY to determine repair, replacement with the same or closest equivalent product, or refund of purchase price.
Common 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.
Warranty Claim Process
- Retain proof of original purchase.
- Return the product through the original place of purchase where applicable.
- If claiming directly, obtain a case number before returning goods.
- Products must be securely packed and clearly identified.
- Warranty assessment determines repair, replacement or refund.
Australian Consumer Law
Lockwood warranties operate in addition to rights available under the Australian Consumer Law. Goods come with guarantees that cannot be excluded. Customers may be entitled to a replacement or refund for a major failure and compensation for reasonably foreseeable loss or damage.
Where a product fails to meet acceptable quality standards and the failure does not amount to a major failure, the customer is entitled to repair or replacement.