Lockwood 3540 Short Backset Mortice Lock 22mm Bolt - Satin Chrome
The Lockwood 3540 Short Backset Mortice Lock is a high performance primary locking solution designed for narrow stile hinged doors and specialised applications requiring a compact backset. It features a robust 22mm bolt for secure locking and reliable performance.
This mortice lock is suitable for both hinged and sliding door applications, offering flexible installation where the lock is mounted to the door jamb and the bolt engages into a strike fixed to the door. Built for heavy duty use, it is widely used across commercial, institutional and industrial environments.
Manufactured using premium materials, the 3540 Series provides smooth operation and durability expected from Lockwood’s high quality mortice lock range.
- Short backset design ideal for narrow stile doors
- 22mm bolt for secure locking performance
- Positive action deadbolt operation
- Operable via key, turnknob, escape turn or handle
- Suitable for both hinged and sliding door applications
- Heavy duty construction for commercial and industrial use
- High quality materials for smooth and reliable operation
Suitable Uses
- Narrow stile hinged doors
- Sliding door locking applications
- Commercial buildings
- Hospitals, schools and institutions
- Retail and hospitality environments
- Industrial facilities
Specifications
Technical Drawing
Frequently Asked Questions
What is a short backset lock?
A short backset lock is designed for narrow stile doors where standard backsets cannot be accommodated.
Can this be used on sliding doors?
Yes, it can be installed so the lock is mounted to the jamb and engages with a strike on the door.
Is this suitable for heavy duty use?
Yes, it is designed for commercial, industrial and institutional applications.
Additional Information
- Widely specified in Australian commercial building projects.
- Provides reliable locking performance in high traffic environments.
- Suitable for specialised door configurations requiring compact lock cases.
- Part of the Lockwood premium mortice lock range.
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.
