Lockwood 355 Double Cylinder Deadlock - Chrome Plate - 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
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.
