
Lockwood Onyx Surface Fix Strike Packer 3mm - Black - 9A-142BLK
The Lockwood Onyx Surface Fix Strike Packer 3mm is a strike spacing accessory for compatible Lockwood Onyx sliding door hardware. It is used behind the surface fix strike where additional stand-off is required to achieve correct strike positioning.
This 3 millimetre packer helps installers fine tune alignment between the lock body and strike during new installations and retrofit work. It is intended for use within the Lockwood Onyx sliding door system rather than as a general-purpose spacer.
The supplied finish for this item code is Black, matching Black Onyx hardware where a coordinated appearance is required.
Typically ships in 5 business days
Key Features
- Surface fix strike packer for the Lockwood Onyx sliding door system
- 3 millimetre packer thickness for strike spacing adjustment
- Helps correct strike stand-off where additional spacing is needed
- Used to fine tune alignment during installation or retrofit work
- Black finish to suit matching Black Onyx hardware
- Accessory item intended for compatible Onyx strike configurations
Suitable Uses
- Lockwood Onyx sliding door installations using a surface fix strike
- Retrofit work where strike spacing needs adjustment
- Correcting latch and strike alignment on compatible Onyx door sets
- Matching Black Onyx hardware installations
- Residential and light commercial sliding door applications in Australia
Full Specifications
Dimensions
Item Code Family
No additional mechanically different family item codes were confirmed in the supplied data for this specific packer.
Frequently Asked Questions
What is this packer used for?
It is used behind a compatible Lockwood Onyx surface fix strike to add 3 millimetres of spacing and help correct strike alignment.
Does this packer suit all Lockwood strikes?
No. It is intended for compatible Lockwood Onyx surface fix strike applications, so the strike configuration should be confirmed before ordering.
What is a common installation mistake to avoid?
A common mistake is using a packer to solve a strike-type mismatch instead of confirming the correct strike arrangement first.
Additional Information
- Strike packers are usually specified when door frame geometry or existing preparation requires the strike to sit further proud for correct engagement.
- On retrofit work, installers commonly confirm latch engagement first before choosing packer thickness.
- This type of accessory is small but important because even minor spacing errors can affect lock feel, latch entry and long-term wear.
- Commonly used in Australian residential and light commercial sliding door service work with Lockwood Onyx hardware.
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
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.