
Lockwood Onyx External Cover Plate
The Lockwood Onyx External Cover Plate is an external furniture component for compatible Lockwood Onyx sliding door hardware applications.
The Lockwood Onyx range is designed for sliding patio doors and uses contemporary styling to complement other Lockwood residential door hardware. The range includes internal D handles, slim pulls, external furniture and strike options to suit various sliding door applications.
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Key Features
- External cover plate for compatible Lockwood Onyx sliding door hardware
- Designed for sliding patio door applications
- Part of the Lockwood Onyx sliding door hardware range
- Contemporary architectural styling within the Onyx range
- Suitable for compatible aluminium and timber sliding door applications
- Onyx range satisfies Australian Standard requirements for strength and durability
- 25 year mechanical warranty
Suitable Uses
- Compatible Lockwood Onyx sliding door hardware installations
- Sliding patio door applications
- Aluminium sliding doors
- Timber sliding doors
- New and retrofit sliding door hardware projects where an external cover plate is required
Full Specifications
Frequently Asked Questions
Is this a complete Onyx lockset?
No. This item is an external cover plate component. A complete Onyx sliding door setup may require compatible internal furniture, external furniture, lock body and strike components depending on the door configuration.
Can this be used on timber and aluminium sliding doors?
The Onyx range is stated as suitable for most aluminium and timber sliding doors, but this cover plate must still match the specific Onyx hardware and door preparation.
Is this item non-returnable?
Return status has not been specified in the supplied product data. Confirm return conditions before ordering if this is a special order or project-specific item.
Additional Information
- External cover plates are commonly used to finish or complete the outside face of compatible sliding door furniture.
- Check the existing Onyx furniture layout before ordering, as cover plates are not universal across unrelated sliding door hardware ranges.
- The supplied product text mentions range features such as twin locking beaks, Door Close Detect, LockAlert, DualSelect and Safety Release. These are Onyx range features and may not all apply directly to this cover plate component alone.
- No confirmed finish, fixing screw details or included parts have been supplied for this specific cover plate.
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 Sliding Door Hardware Catalogue

Lockwood Sliding Door Hardware Catalogue
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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.