Lockwood Symmetry Deadlatch 60-70mm Adjustable Backset – Polished Brass
The Lockwood Symmetry Deadlatch with 60-70mm Adjustable Backset in Polished Brass is part of the Symmetry door furniture range, offering quality residential door hardware that combines Australian Standards compliance with installation flexibility and refined aesthetic design.
This deadlatch features an adjustable backset configuration that can be set to either 60mm or 70mm to suit different door preparation requirements, with a 13mm throw latch bolt for secure door retention. The Symmetry range is designed to meet the demanding quality and style requirements of the Australian market, with all products tested in accordance with Australian Standards for security and durability.
The exclusive OneCyl cylinder assembly solution provides the convenience of cylinder interchangeability, allowing compatibility with a range of restricted keying systems for flexible security management across residential properties.
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Key Features
- Adjustable backset: can be set to 60mm or 70mm for installation flexibility
- 13mm throw latch bolt for secure door retention
- OneCyl cylinder assembly solution for cylinder interchangeability
- Compatible with a range of restricted keying systems
- Suitable for both left-hand and right-hand door applications
- Strike includes anti-rattle tab for quiet operation
- Polished Brass finish with 5 year finish guarantee
- Tested to Australian Standards for security and durability
- Part of the comprehensive Symmetry door furniture range
Suitable Uses
- Residential entrance doors
- Interior passage doors
- New construction residential applications
- Renovation and upgrade projects
- Multi-residential developments
- Doors requiring either 60mm or 70mm backset configuration
- Applications where backset flexibility simplifies inventory management
Full Specifications
Frequently Asked Questions
- How do I adjust the backset between 60mm and 70mm?
The latch mechanism can be adjusted during installation to suit either 60mm or 70mm backset requirements. Adjustment instructions are included with the product. Once set, the backset remains fixed at the selected measurement. - What is the difference between adjustable and fixed backset models?
The adjustable backset model (7511A series) can be set to either 60mm or 70mm, providing installation flexibility. The 127mm fixed backset model (7511C series) is pre-set to 127mm only and cannot be adjusted. - What is the OneCyl cylinder system?
OneCyl is Lockwood's exclusive one cylinder assembly solution that provides the convenience of cylinder interchangeability. This allows the cylinder to be easily changed or keyed alike with other Lockwood locks without replacing the entire lockset. - Can this deadlatch be used on fire-rated doors?
Fire rating suitability depends on the complete door system and lockset assembly. Consult the manufacturer's fire rating documentation or contact Lockwood technical support for specific fire door applications. - Is this suitable for exterior doors?
While this deadlatch can be used on entrance doors, it provides latching function only. For exterior door security, it should be used in conjunction with a separate deadbolt or as part of a complete entrance lockset with deadlocking capability.
Additional Information
- Symmetry Range Integration:
This deadlatch is part of the comprehensive Symmetry door furniture range, allowing coordinated aesthetic appearance across entrance locksets, passage sets, privacy locks, and door furniture throughout residential properties. - Australian Standards Compliance:
All Symmetry products are tested in accordance with Australian Standards for security and durability, ensuring reliable performance in Australian residential applications and compliance with local building requirements. - Adjustable Backset Advantage:
The 60-70mm adjustable backset provides installation flexibility for different door preparation requirements. This single model can accommodate both common residential backset measurements, simplifying inventory management and reducing the need to stock multiple fixed backset versions. - Anti-Rattle Strike Design:
The included strike features an anti-rattle tab that minimizes door rattle and noise, particularly important in windy conditions or high-traffic residential environments where door movement can cause disturbance. - Universal Handing:
The latch is suitable for both left-hand and right-hand door applications, providing installation flexibility without requiring separate left and right-hand versions for inventory management. - Polished Brass Finish:
The Polished Brass finish provides a traditional elegant appearance with warm golden tones. Regular cleaning with soft cloth maintains the polished appearance. The 5 year finish guarantee covers defects in finish materials and workmanship.
Lockwood branded products purchased new in Australia from authorised resellers are covered against defects in materials and workmanship for:
- Mechanical components: 25 years
- Polished Brass finish: 5 years
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.
Official Warranty Document
