Lockwood 355 Double Cylinder Deadlock — Available in 5 Finishes, 60mm Backset
The Lockwood 355 Double Cylinder Deadlock delivers premium security for both residential and light commercial applications. Operated by key from both sides, with the internal key locking or unlocking the turn knob, the 355 provides strength, reliability and protection. Built with a clutching turn knob, jemmy-resistant interlocking case, and positive deadlocking action, it is suitable for hinged and some sliding doors. Available in a choice of five finishes to suit your door hardware style.
Warranty
Key Features
- Double cylinder deadlock — key outside and inside
- Internal key locks or unlocks the turn knob
- Lockable turn knob with clutching device resists wrench attack
- Interlocking case & mounting plate resist jemmy and hammer attack
- Positive deadlocking action, concealed fixing
- Suits hinged and some sliding doors
- Tested to AS4145.2-2008 | SL7D8C6
Specifications
- Item Codes: 355-NMBK, 355-NBRNDP, 355-NCPDP, 355-NEVBDP, 355-NSP
- Type: Rim deadlock (double cylinder)
- Backset: 60 mm
- Bolt: Stainless steel
- Case: Thick-walled high purity zinc alloy casting
- Cylinders: Internal & external 5-pin brass cylinders
- Door Thickness: 30–45 mm
- Mounting Plate & Strike: Pressed steel
- Packers: 3 mm packers included
- Strike Conversion Plate: Available for replacing flange strikes
- Compliance: AS4145.2-2008 | SL7D8C6
Keying
- Supplied individually keyed with 2 keys
- Approx. 78,000 key combinations
- Key blank: KB2015P
- Restricted / master keying systems available
What's In The Box
- Lockwood 355 Double Cylinder Deadlock body
- Internal & external cylinders
- Mounting plate and strike
- 3 mm packers
- Fixing screws
- Installation instructions
Suitable Uses
- Residential entry doors
- Light commercial hinged doors
- Sliding doors needing high-security deadlocking
Available Finish Options
-
Black
355-NMBK -
Brown
355-NBRNDP -
Chrome Plate
355-NCPDP -
Everbrass
355-NEVBDP -
Satin Chrome Pearl
355-NSP
Download PDF Resources
|
Lockwood Rimlocks Catalogue |
|
Lockwood 25-Year Mechanical Warranty (conditions apply) |
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.
