
Interlock Wedgeless LP Face Fix 4mm - Left Hand
The Interlock Wedgeless LP Face Fix Window Fastener is a low profile, non-locking fastener designed for aluminium and polyvinyl chloride (PVC) window systems. It features an integrated wedgeless design where a folding flap replaces the need for a separate wedge.
This left hand configuration is commonly used in installations where handle orientation is critical to window operation and usability.
The design allows consistent compression between the window sash and frame while simplifying installation.
Usually ships in 2-3 business days
Key Features
- Integrated wedgeless system using folding flap design
- Low profile handle suitable for by-pass window applications
- Non-locking operation
- Face fix installation method
- Handle length of 93 millimetres
- Suitable for aluminium and polyvinyl chloride (PVC) windows
- Pressure die-cast body with nylon components
- Easy to install and operate
Available Options
- Left hand configuration (this model)
- Right hand configuration available in the range
- Available in Black and White finishes
- Available in 4 millimetre and 6 millimetre backsets within the range
Suitable Uses
- Aluminium window systems
- Polyvinyl chloride (PVC) window applications
- By-pass window installations
- Residential window hardware applications
- Applications requiring integrated wedge functionality
Full Specifications
Available Finish Options
Black
White
Finish availability may vary depending on product configuration and handing options.
Technical Drawing

Item Code Family
Frequently Asked Questions
Does this require a separate wedge?
No, the wedgeless design integrates the wedge function into the fastener.
Is this a locking fastener?
No, this is a non-locking fastener designed for general window operation.
What is a common installation mistake?
Selecting the wrong handing or incorrect mounting position can affect usability and sealing performance.
Additional Information
- Commonly used in Australian residential window installations.
- Integrated wedge design reduces installation time and eliminates compatibility issues.
- Low profile handles are ideal for sliding and by-pass window configurations.
- Correct handing must always be confirmed before installation.
ASSA ABLOY branded products purchased new in Australia from authorised resellers are covered against defects in materials and workmanship for:
- Mechanical components: 10 years
- Electrical and electronic components: 5 years (excluding batteries)
- Cylinders and keys: 3 years
Interlock Wedgeless Installation Instructions (PDF)

Interlock Wedgeless Installation Instructions (PDF)
ASSA ABLOY Warranty Overview
ASSA ABLOY branded products sold in Australia are covered by manufacturer warranties issued by ASSA ABLOY Australia Pty Ltd. Warranty coverage varies depending on mechanical components, electronic components, cylinders and finish categories.
This overview summarises the structure of ASSA ABLOY warranty coverage. Full terms, exclusions and claim procedures are set out in the official ASSA ABLOY Warranty document.
Warranty Periods Summary
Finish & Material Notes
- Stainless steel does not mean stain-free. Tea staining is not covered where cleaning and maintenance guidelines have not been followed.
- Cosmetic, decorative and appearance damage is not covered.
- Battery failure or battery leakage damage is not covered.
What the Warranty Covers
- Defects in material and workmanship within the applicable period.
- Assessment by ASSA ABLOY to determine repair, replacement with the same or closest equivalent product, or refund of purchase price.
- Remedy determined at ASSA ABLOY’s discretion.
Common Exclusions
- Normal wear and tear.
- Misuse, abuse or installation outside published technical specifications.
- Improper maintenance or neglect.
- Unauthorised modification or repair.
- Use of non-genuine ASSA ABLOY parts or substitute components.
- Exposure to corrosive environments including coastal air, salt spray, chemicals, contamination or high humidity.
- Removal, refitment, freight or labour charges.
- Second-hand or imported products not sold through authorised Australian channels.
Warranty Claim Process
- Retain proof of original purchase.
- Return the product to the original authorised retailer where applicable.
- If claiming directly, obtain a case number before returning goods.
- Securely package returned goods and clearly reference the case number.
- Warranty assessment determines repair, replacement or refund.
Australian Consumer Law
ASSA ABLOY 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.