Lockwood 4782SS — Universal Primary Lock 25.4 mm Backset Satin Stainless
The Lockwood 4782SS is a Selector® 4780 Series universal primary mortice lock featuring a compact 25.4 mm short backset. Supplied in Satin Stainless Steel (SS), this lock is specifically engineered for narrow stile aluminium and commercial doors. Built for heavy-duty use, the 4782SS provides secure deadlatching, durability, and compatibility with Lockwood cylinders, escutcheons, and furniture ranges. Suitable for high-traffic commercial and institutional environments.
Estimated Warehouse Dispatch: 2 Days
Key Features
- Universal primary mortice lock body for Selector® 4780 short backset series.
- 25.4 mm backset for narrow stile aluminium door applications.
- Satin Stainless Steel faceplate for strength and clean aesthetics.
- Secure deadlatching bolt with auxiliary latch.
- Reversible handing without disassembly for simple installation.
- Compatible with Lockwood 570 oval cylinders and restricted/master key systems.
- Designed to meet high-traffic commercial requirements.
Fire Rated
- Tested up to 4 hours on compliant fire door assemblies (AS 1905.1:2005).
Specifications
- Item Code: 4782SS
- Function: Universal primary mortice lock body (short backset, MkI platform).
- Backset: 25.4 mm.
- Finish: Satin Stainless Steel (SS).
- Door Thickness: 32–50 mm standard; extension kits available.
- Bolt: 15 mm stainless steel latch with auxiliary deadlatch.
- Case: Zinc alloy with stainless steel chassis.
- Handing: Reversible without disassembly.
- Standards: AS4145.2 (Durability D8, Security S7); AS1905.1 (Fire Doors).
What's In The Box
- 1 × Lockwood 4782SS mortice lock body (25.4 mm backset)
- 1 × Satin Stainless Steel faceplate
- 1 × Satin Stainless Steel strike plate
- Fixing screws
- Installation instructions
Suitable Uses
- Narrow stile aluminium and commercial doors requiring a short backset lock.
- High-traffic institutional environments including schools, hospitals, and government buildings.
- Fire-rated door installations needing compact mortice locks.
- Retrofit applications where 25.4 mm short backset Selector® lock is specified.
Selector® 4782 Short Backset Escape Locks — Item Code Family (25.4 mm Backset)
Selector® 4782 — Accessories & Spares (Short Backset, 25.4 mm Backset Series)
Warranty
- Lockwood 25 Year Mechanical Warranty covers mechanical components and workmanship under normal use and correct installation.
- Electronic and electrical components are covered for 3 years (PADDE & electric mortice locks 5 years, batteries excluded).
- Keys are covered for 12 months.
- Finish warranty varies by finish type and exposure — e.g. Everbrass 25 years; Stainless/Chrome/Anodised 10 years; PVD/VIVID 10 years; Symmetry range 5 years; decorative finishes such as bronze, antique and powdercoat 2 years (natural brass ageing excluded).
- Warranty excludes misuse, improper installation, modification, or failure to maintain as specified.
Download PDF Resources
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Lockwood Selector 3700 Series Mortice Locks Catalogue |
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Lockwood Selector 3700 Series Mortice Locks Service Manual |
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Lockwood 25 Year Mechanical Warranty (Conditions Apply) |
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
For full returns and warranty claim procedures, visit our Returns & Warranty page - this is kept up to date and is the authoritative reference for current claim steps.
- 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.
Australian Consumer Law
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.
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.
