Lockwood 3641 Short Backset Mortice Lock 28mm Bolt (Metal) - Satin Chrome
The Lockwood 3641SC Short Backset Mortice Lock is designed for narrow stile sliding and hinged doors requiring secure hook bolt locking.
This model features a 28mm swinging hook bolt that engages into a compatible strike, providing strong locking performance in commercial and architectural applications.
Usually ships in 10 business days
Non-Returnable Item: This product is a special order and is not returnable.
Key Features
- Short backset mortice lock with 28mm hook bolt
- Hook bolt engages into strike for secure locking
- Suitable for sliding and hinged narrow stile doors
- Operable via key, turn or handle depending on configuration
- Reversible handing for flexible installation
- Heavy duty construction for commercial environments
Suitable Uses
- Commercial aluminium doors
- Sliding and hinged narrow stile doors
- Shopfront glazing systems
- Industrial and institutional buildings
- Doors requiring hook bolt security
Specifications
Frequently Asked Questions
What is the benefit of a hook bolt?
It engages into the strike to provide stronger resistance against forced entry.
Can this be used on sliding doors?
Yes, it is designed for both sliding and hinged narrow stile doors.
What is a common installation mistake?
Incorrect alignment between the hook bolt and strike can reduce locking effectiveness.
Additional Information
- Hook bolt design provides improved security over standard deadbolts.
- Commonly specified in Australian commercial aluminium door systems.
- Requires compatible latching or security strike for correct operation.
- Suitable for high traffic commercial environments.
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.
