Lockwood 3640 Short Backset Mortice Deadlock Double Cylinder (Metal) - Satin Chrome
The Lockwood 3640RRSC Short Backset Mortice Deadlock is a double cylinder locking solution designed for narrow stile hinged and sliding doors where secure key access is required from both sides.
This configuration uses a 22mm swinging deadbolt with positive deadlocking action, providing reliable security for commercial and industrial applications.
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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
- Double cylinder operation requiring key on both sides
- 22mm projection swinging deadbolt
- Positive deadlocking action for secure engagement
- Suitable for commercial and high security environments
- Reversible handing for flexible installation
Suitable Uses
- Narrow stile aluminium doors
- Commercial shopfronts
- Industrial and institutional buildings
- Doors requiring key access on both sides
- Sliding and hinged door applications
Specifications
Frequently Asked Questions
What is a double cylinder lock?
It requires a key to operate from both inside and outside of the door.
Is this suitable for emergency exit doors?
No, double cylinder locks are not recommended where quick egress without a key is required.
What is a common installation mistake?
Using this type of lock in areas requiring emergency exit compliance.
Additional Information
- Commonly used where controlled access is required on both sides of a door.
- Widely specified in commercial environments requiring higher security.
- Part of the Lockwood 3640 short backset mortice lock system.
- Careful consideration is required for compliance in emergency egress applications.
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.
