
Lockwood 4782 Mortice Lock 25.4mm Backset Including Latching Adaptor Satin Stainless Steel
The Lockwood 4782 Universal Primary Mortice Lock is engineered for narrow stile hinged doors, offering dependable performance in demanding commercial environments.
Designed for versatility, this primary lock supports a wide range of latching functions and is suitable for integration with various cylinder and handle configurations.
Supplied with a latching adaptor, it provides enhanced flexibility for installation and application requirements.
Usually ships in 10 business days
Key Features
- 25.4mm backset mortice lock for narrow stile doors
- Includes latching adaptor for flexible installation
- Easy red and green function setting system
- In-door configuration via faceplate access
- Anti-lockout and holdback capabilities included
- Improved cylinder functionality for lock and latch control
- Reduced need for multiple cylinder cams and adaptors
- Suitable for heavy duty commercial applications
Suitable Uses
- Commercial buildings and offices
- Schools, hospitals and institutions
- Hotels and accommodation facilities
- Narrow stile aluminium door applications
Specifications
Frequently Asked Questions
What does the latching adaptor do?
It allows the lock to be configured for different latching functions, improving flexibility during installation.
Is this suitable for aluminium doors?
Yes, it is designed specifically for narrow stile door applications, commonly found in aluminium doors.
Can the lock settings be changed on site?
Yes, all settings can be adjusted from under the faceplate without removing the lock.
Additional Information
- Designed for high durability and long service life.
- Ideal for high traffic commercial environments.
- Supports a wide range of Lockwood cylinder and furniture options.
- Professional installation recommended.
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 Selector 3700 Series Mortice Locks Catalogue

Lockwood Selector 3700 Series Mortice Locks 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.