Lockwood 3542 Short Backset Mortice Deadlock Cylinder & Teardrop Turn - Satin Chrome
The Lockwood 3542 Short Backset Mortice Deadlock with Cylinder and Teardrop Turn is designed for narrow stile sliding and swing door applications where secure locking and internal thumbturn operation are required.
Part of the Lockwood 3540 Series, this model combines key access from the outside with a convenient teardrop turn on the inside, making it suitable for commercial and architectural door systems requiring reliable and controlled access.
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 with cylinder operation
- Internal teardrop turn for quick locking and unlocking
- Suitable for sliding and swing door applications
- Tested to Australian Standards
- Compatible with restricted keying systems
- Part of Lockwood Synergy mortice lock range
- Commercial grade construction for durability
Suitable Uses
- Commercial aluminium sliding doors
- Narrow stile door systems
- Office and retail security applications
- Internal doors requiring thumbturn locking
- Fabricator door installations
Specifications
Item Code Family - Lockwood 3542 Mortice Deadlock Turn Variants
Frequently Asked Questions
What is a teardrop turn?
A teardrop turn is an internal thumbturn that allows quick locking and unlocking from the inside without a key.
Is this suitable for commercial use?
Yes, it is designed for commercial and architectural door systems requiring secure locking.
Can it be used with restricted key systems?
Yes, it is compatible with restricted keying systems for enhanced security control.
Additional Information
- Ideal for applications requiring internal thumbturn operation.
- Short backset suits narrow aluminium door frames.
- Part of the Lockwood Synergy mortice lock platform.
- Professional installation is recommended for optimal 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 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.
