Lockwood 3640 Short Backset Mortice Deadlock Cylinder Escape Turn (Metal) - Satin Chrome
The Lockwood 3640 Short Backset Mortice Deadlock with cylinder and escape turn is designed for secure locking of narrow stile hinged and sliding doors where standard backset locks are unsuitable.
This configuration provides external key operation with internal escape turn functionality, making it ideal for commercial applications requiring both security and safe exit capability.
Usually ships in 10 business days
Non-Returnable Item: This product is a special order and is not returnable.
Key Features
- Short backset mortice deadlock for narrow stile doors
- External key operation with internal escape turn
- 22mm projection swinging deadbolt
- Positive deadlocking action for secure engagement
- Suitable for commercial and high traffic environments
- Compatible with Lockwood 3640 series hardware
Suitable Uses
- Narrow stile aluminium doors
- Commercial shopfront doors
- Sliding and hinged door applications
- Schools, hospitals and commercial buildings
- Applications requiring internal escape functionality
Specifications
Frequently Asked Questions
What is an escape turn?
It allows the door to be unlocked from the inside without a key for fast exit.
Is this suitable for sliding doors?
Yes, it is commonly used on sliding doors when paired with the correct strike.
What is a common installation mistake?
Incorrect handing selection or incorrect strike choice can affect lock performance.
Additional Information
- Commonly specified across Australia for commercial aluminium door systems.
- Short backset design is critical for narrow stile applications.
- Escape turn improves usability in occupied buildings.
- Part of the Lockwood 3640 mortice lock ecosystem with multiple compatible accessories.
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 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 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.
