
Lockwood 3541 Short Backset Sliding Door Lock 45 Degree Lever Security Strike - Satin Chrome
The Lockwood 3541 Short Backset Sliding Door Lock with 45 degree lever and security strike is designed for narrow stile sliding doors requiring a compact and secure mortice locking solution. It features a swing-bolt deadlocking mechanism that positively engages into a security strike for improved locking strength.
This configuration includes a 45 degree lever for sliding door operation and a security strike for enhanced engagement. It is 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 lock designed for narrow stile sliding doors
- Swing-bolt deadlocking mechanism for secure engagement
- Includes 45 degree lever for sliding door operation
- Supplied with security strike for improved locking strength
- Compatible with Lockwood 3540 Series cylinders
- Suitable for sliding and swing door applications
- Part of the Lockwood Synergy mortice lock system
- Tested to Australian Standard requirements
Suitable Uses
- Commercial aluminium sliding doors
- Narrow stile door applications
- Retail and office entry systems
- Applications requiring enhanced strike engagement
- New installations and retrofit upgrades
Specifications
Frequently Asked Questions
Does this include a cylinder?
No, this version is supplied without a cylinder to allow custom keying selection.
What is the benefit of the security strike?
The security strike improves bolt engagement and resistance compared to standard strikes.
Is this suitable for sliding aluminium doors?
Yes, it is specifically designed for narrow stile aluminium sliding door applications.
Additional Information
- Commonly used in Australian commercial sliding door systems where improved strike strength is required.
- The security strike provides better resistance to forced entry compared to standard strike plates.
- Correct alignment between bolt and strike is critical for optimal performance.
- Suitable for integration into master key systems when paired with compatible cylinders.
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.