
Lockwood 35791 Secure Area Mortice Deadbolt Primary Lock 60mm Backset - Satin Chrome
The Lockwood 35791 Secure Area Mortice Deadbolt is designed for high security government, institutional, and commercial applications where secure area compliance is required.
Part of the Lockwood 3579 series, this mortice deadbolt has been successfully SCEC endorsed for secure area applications when installed with the required compliant cylinder and approved full plate furniture.
This model is designed as a primary lock with a 60mm backset and is suited to projects requiring strong physical security, controlled access, and fire tested performance.
Usually ships in 3 business days
Key Features
- SCEC endorsed secure area mortice deadbolt
- Primary lock configuration for high security applications
- All handing type features including hub selection, anti-lockout screw and reversible latch are accessible without removing the plates
- 2 x 1.2mm stainless steel plates fixed through the lock provide increased strength to the cylinder and latch areas
- Compatible with 570 oval type cylinders and retaining pin
- Compatible with approved Lockwood full plate furniture ranges
- Tested to Australian Standards
Suitable Uses
- High security government projects
- Institutional secure areas
- Commercial projects requiring secure area compliance
- Doors requiring a primary deadbolt mortice lock
- Applications requiring controlled access and high strength lock construction
Fire Rated
The Lockwood 3579 Series Cylinder Mortice Lock has been successfully fire tested for up to 4 hours on fire door assemblies in accordance with Australian Standard AS 1905.1 - 2005, Part 1: Fire Resistant Doorsets.
Specifications
Frequently Asked Questions
Is this lock SCEC compliant on its own?
No. To achieve secure area compliance it must also be fitted with an SCEC endorsed 570 oval cylinder that is secure area rated and approved full plate furniture.
Does this include a cylinder?
The supplied information does not confirm an included cylinder, so cylinder requirements should be checked before ordering.
Can this be used on fire doors?
Yes, the 3579 series has been successfully fire tested for up to 4 hours when used on compliant fire door assemblies.
Additional Information
- This model is intended for secure area projects where both physical strength and compliance are critical.
- To maintain secure area rating, approved cylinders and full plate furniture must be used.
- Common misapplication occurs when secure area locks are paired with non-compliant cylinders or furniture.
- The 3579 platform is widely specified in Australian government and institutional projects with strict access requirements.
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 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 Synergy Mortice Locks Catalogue

Lockwood Synergy Mortice Locks Catalogue
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.