
Lockwood 3640 Series Latching Strike Metal / Timber Mounting - Satin Chrome
The Lockwood SP3640-LSSC Latching Strike is designed for use with Lockwood 3640 Series short backset mortice locks, providing a reliable strike solution for sliding and hinged door applications.
Engineered for aluminium jamb installations, this strike incorporates adjustable rear support legs to prevent movement or deformation under load. It is particularly suited to narrow stile and architectural door systems where precision alignment is critical.
This strike is commonly used in commercial installations requiring durability, adjustability, and consistent latch engagement.
Usually ships in 10 business days
Key Features
- Designed for Lockwood 3640 Series mortice locks
- Suitable for sliding and hinged door applications
- Fabricator mounting for aluminium door frames
- Includes adjustable rear support legs for stability
- Supplied with shim plates for fine adjustment
- Heavy duty construction for commercial environments
Suitable Uses
- Sliding doors with aluminium jamb mounting
- Narrow stile commercial door systems
- Shopfront and architectural glazing installations
- Commercial and institutional buildings
Full Specifications
Frequently Asked Questions
Is this compatible with all 3640 series locks?
It is designed for Lockwood 3640 Series short backset mortice locks. Compatibility with other series is not confirmed.
Does this suit aluminium door frames?
Yes, it is specifically designed for aluminium jamb mounting applications.
What is a common installation mistake?
Not adjusting the rear support legs correctly can result in movement or poor latch engagement.
Additional Information
- Rear support legs help prevent the strike from being pushed into the frame in sliding door applications.
- Commonly used in Australian shopfront and glazing systems.
- Adjustment shims allow precise alignment during installation.
- Correct alignment is critical for smooth latch engagement and long term performance.
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
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.