Lockwood Symmetry Imperial Passage Knobset – 60mm Fixed Backset
Upgrade your home with the durable and stylish Lockwood Symmetry Imperial Passage Knobset, designed for residential passage doors requiring free knob operation from both sides without locking capability.
This passage knobset features the Imperial knob profile with vertical mounting screw fixing and snap-on trim for concealed installation, cylindrical latch mechanism with fixed 60mm backset, and 13mm throw latch bolt. Constructed with stainless steel and brass materials, the knobset includes a D-strike with anti-rattle tab as standard and is fire rated up to 2 hours when installed on approved fire-rated assemblies.
Manufactured to meet Australian market quality and style requirements and tested in accordance with Australian Standards (AS 1905.1-1997) for fire resistance, this passage knobset is suitable for both left and right-hand doors with door thickness from 32mm to 46mm. Available in Polished Stainless Steel or Satin Stainless Steel finish, ideal for hallways, walk-in wardrobes, and other residential applications requiring non-locking passage function with the Lockwood 25 year mechanical warranty and 5 year finish guarantee.
Estimated Warehouse Dispatch
Usually ships in 3 business days
Usually ships in 3 business days
Available Finish Options
Polished Stainless Steel
Code: 7021PSS
Satin Stainless Steel
Code: 7021SSS
Finish selection does not affect functionality, compliance, or performance.
Fire Rated
- Fire tested up to 2 hours on fire door assemblies in accordance with AS 1905.1-1997, Part 1: Fire Resistant Doorsets.
- Fire rating depends on the type of fire door assembly used.
- Fire compliance is system-based and requires approved fire-rated door construction.
Key Features
- Passage function with free knob operation from both sides
- Imperial knob profile for traditional residential styling
- Vertical mounting screw fixing with snap-on trim for concealed installation
- Fire rated up to 2 hours (AS 1905.1-1997)
- 60mm fixed backset cylindrical latch mechanism
- 13mm throw latch bolt for positive engagement
- D-strike with anti-rattle tab as standard
- Stainless steel and brass construction
- OneCyl® compatible for integrated hardware solutions
- Suitable for both left and right-hand door applications
- Suitable for door thickness 32-46mm
- Non-locking passage function (no cylinder or keys)
- Tested to Australian Standards for quality and fire resistance
- 5 year finish guarantee
What's in the Box
- Passage knob assembly (pair with free operation both sides)
- 60mm fixed cylindrical latch
- D-strike with anti-rattle tab
- Vertical mounting hardware with snap-on trim
- Installation instructions
Suitable Uses
- Hallway and passage doors requiring non-locking function
- Walk-in wardrobes and closet doors
- Study and home office doors (non-locking)
- Laundry room and utility area doors
- Pantry and storage room access
- Fire-rated passage door applications
- Internal residential doors without privacy requirements
- Applications coordinating with Symmetry Imperial entrance and privacy knobsets
Full Specifications
Dimensions
Imperial knob profile design showing knob configuration and mounting details for the Symmetry passage knobset.
Installation configuration showing vertical mounting screw system with snap-on trim for concealed fixing.
Detailed view of knobset assembly showing mounting hardware and component relationships for passage knobset installation.
Frequently Asked Questions
- What is a passage function knobset?
A passage function knobset provides free knob operation from both sides without any locking capability. Both the interior and exterior knobs always operate freely to retract the latch, making it ideal for hallways, closets, and other doors that require access without privacy or security locking. - What is the difference between cylindrical and tubular latch?
Cylindrical latches have a fixed backset (60mm for this model) and are typically used in fire-rated applications. Tubular latches usually have adjustable backsets (60-70mm). The Imperial passage knobset uses a cylindrical latch with fixed 60mm backset for fire-rated compliance. - Is this knobset suitable for fire-rated doors?
Yes. This Imperial passage knobset has been fire tested up to 2 hours on fire door assemblies in accordance with AS 1905.1-1997. The fire rating depends on the complete door assembly used and requires approved fire-rated door construction. - What is vertical mounting with snap-on trim?
Vertical mounting uses a screw that passes vertically through the knob assembly to secure the hardware. The snap-on trim covers the mounting screw for a concealed, clean appearance with no visible fasteners on the finished installation. - What is the difference between Polished and Satin Stainless Steel?
Polished Stainless Steel (PSS) provides a bright reflective mirror-like finish. Satin Stainless Steel (SSS) provides a contemporary brushed appearance with reduced reflection. Both finishes are covered by the 5 year finish guarantee. - Is this suitable for both left and right-hand doors?
Yes. The Symmetry Imperial passage knobset is reversible and suitable for both left-hand and right-hand door applications, providing installation flexibility without requiring separate handed versions.
Additional Information
- Symmetry Range Integration:
This passage knobset is part of the comprehensive Symmetry door furniture range. The Imperial knob profile provides traditional styling suitable for residential interiors while coordinating with the broader Symmetry knobset family including entrance and privacy functions for consistent aesthetic appearance. - Passage Function Operation:
The passage function provides free knob operation from both sides at all times with no locking capability. This is ideal for doors requiring access without privacy or security locking such as hallways, walk-in wardrobes, closets, and utility rooms. - Fire-Rated Performance:
Successfully fire tested up to 2 hours on fire door assemblies in accordance with AS 1905.1-1997, Part 1: Fire Resistant Doorsets. The fire rating depends on the type of fire door assembly used and requires system-based compliance with approved fire-rated door construction. - Cylindrical Latch Mechanism:
The 60mm fixed cylindrical latch provides 13mm throw for positive door engagement. Unlike tubular latches with adjustable backsets, the cylindrical latch has a fixed backset appropriate for fire-rated applications. The D-strike includes an anti-rattle tab as standard. - Vertical Mounting with Concealed Fixing:
The vertical mounting screw fixing with snap-on trim provides concealed installation for clean aesthetics. The mounting screw passes vertically through the knob assembly, then the decorative trim snaps on to hide the fastener, creating a professional finished appearance. - Australian Standards Compliance:
All Symmetry products are tested in accordance with Australian Standards for quality, security, and durability. The Imperial knobset additionally complies with fire resistance standards AS 1905.1-1997 for use in fire-rated door assemblies. - OneCyl® System Compatibility:
While passage knobsets do not include cylinder assemblies, they are part of the OneCyl® compatible Symmetry range, allowing coordinated hardware styling across properties that include both passage function and entrance function doors with consistent Imperial knob profile. - Door Thickness Range:
Suitable for door thickness from 32mm to 46mm, covering fire-rated and standard residential door constructions. The narrower thickness range compared to leversets reflects the specific requirements of the cylindrical latch and fire-rated design. - 5 Year Finish Guarantee:
Both Polished and Satin Stainless Steel finishes are covered by the 5 year finish guarantee. Lockwood guarantees to replace Symmetry products if within five years from the proven date of purchase they tarnish, discolour, or corrode when properly installed. - Coordinated Door Furniture Systems:
For properties with multiple doors requiring different functions, this passage knobset coordinates with Symmetry Imperial entrance knobsets (keyed exterior) and privacy knobsets (turn button bathrooms/bedrooms) to provide consistent Imperial knob profile and stainless steel finishes throughout.
Lockwood Warranty (Australia)
Lockwood branded products purchased new in Australia from authorised resellers are covered against defects in materials and workmanship for:
Lockwood branded products purchased new in Australia from authorised resellers are covered against defects in materials and workmanship for:
- Mechanical components: 25 years
- Stainless steel finishes: 5 years
Cosmetic finishes, normal wear and tear, misuse, unauthorised modification, corrosion and labour or freight costs are excluded.
This warranty operates in addition to rights available under the Australian Consumer Law.
Download PDF Resources
Lockwood Symmetry Catalogue
Lockwood Symmetry Knobset Installation Instructions
Lockwood Symmetry Catalogue
Lockwood Symmetry Knobset Installation Instructions
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.
