Elevate your interiors with the durable and stylish Symmetry Dummy Knob in polished or satin finish.
Upgrade your home with the Symmetry Dummy Knob, available in polished and satin stainless steel finishes. Designed for durability and style, it meets Australian standards and features the innovative OneCyl® solution for easy cylinder interchangeability. Enjoy a 25-year mechanical warranty and a sleek look that fits any door.

Let’s explore its impressive features:
Features:
- Quality Assurance:
- Produced to meet Australian market style and quality standards.
- Tested according to Australian Standards for security and durability.
- OneCyl® Solution:
- Exclusive cylinder assembly solution allowing cylinder interchangeability.
- Compatible with various restricted keying systems.
- Warranty:
- 25-year mechanical warranty for reliability.
- 5-year finish guarantee, with Everbrass finish offering a 25-year guarantee.
- Adjustable Latch:
- Adjustable latch to suit 60-70mm backset.
- Latch features a 13mm throw for enhanced security.
- Versatile Design:
- Suitable for both left and right handed doors.
- Fits door thickness range of 30-51mm.
- Anti-Rattle Feature:
- Strike includes an anti-rattle tab for improved performance.
Elevate your home's style and security today by choosing the Symmetry Dummy Knob – the perfect blend of quality and innovation!
Installation:
Easy to install. Supplied with detailed mounting instructions.
Handing:
Suitable for left and right handed doors.
Materials:
Knob – Stainless Steel and Brass
Type: Cylindrical
Chassis: Steel
Bolt head: Stainless steel
Fixing:
Vertical mounting screw fixing.
Fixing concealed with snap-on trim.
Door Thickness:
32 to 46mm for timber doors.
Backset:N/A
Latch:N/A
Strike:
N/A
Cylinder:N/A
Fire Rating:
N/A
Functions:
Dummy
Keying:
N/A
Finishes:
Polished Stainless Steel PSS
Satin Stainless Steel SSS
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.