Lockwood 3540 Short Backset Mortice Deadlock Cylinder Mounted Escape - Satin Chrome
The Lockwood 3540 Short Backset Mortice Deadlock Cylinder Mounted Escape is designed for narrow stile door applications where both security and safe internal egress are required. It combines external key operation with an internal escape turn for quick exit.
This configuration is commonly used in commercial aluminium doors and architectural glazing systems, where space limitations require a short backset lock and compliance requires internal escape functionality.
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Non-Returnable Item: This product is a special order and is not returnable.
Key Features
- Short backset mortice deadlock for narrow stile doors
- Cylinder external operation with internal escape turn
- Positive action swing bolt for secure locking
- Allows rapid internal exit without a key
- Suitable for aluminium hinged and sliding doors
- Designed for commercial and architectural applications
- Durable construction for high use environments
Suitable Uses
- Aluminium framed commercial doors
- Narrow stile hinged doors
- Sliding door locking systems
- Doors requiring safe internal escape function
- Retail, office and institutional buildings
- Architectural glazing systems
Specifications
Item Code Family
Frequently Asked Questions
What is a cylinder mounted escape turn?
It allows the door to be unlocked from the inside without a key using a turn mechanism.
Is this suitable for emergency exit situations?
It can assist with egress, but compliance depends on building regulations and application.
Can this be used on narrow aluminium doors?
Yes, the short backset design is specifically intended for narrow stile door applications.
Additional Information
- Commonly specified in Australian commercial aluminium door systems requiring internal escape capability.
- Short backset locks are essential for narrow stile profiles where standard locks will not fit.
- Escape turn configurations are often used where internal safety and convenience are required.
- Incorrect installation or poor strike alignment can affect locking reliability.
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)
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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.
