Interlock 430 4BC NF Stainless Steel Non-Friction Stay – P1080NF
The Interlock 430 4BC NF is a non-friction 4-bar stainless steel hinge designed for projecting side hung (PSH) window sashes.
This model is specified where a window control mechanism provides the opening resistance and hinge friction is not required.
Manufactured from 304 grade austenitic (non-magnetic) stainless steel, the 4BC Series caters for residential and light commercial casement window applications.
This product is a hinge stay only. Window operators, restrictors and fixings are not included.
3 Days
Key Features
- Non-friction (NF) configuration.
- 4-bar stainless steel hinge construction.
- Manufactured from 304 grade austenitic stainless steel.
- Non-magnetic corrosion resistant material.
- No sliding channels.
- Fixed directly through bearing eyelet and formed screw/rivet holes.
- New Zealand made.
- Supplied as a pair.
Full Specifications
Dimensions

All dimensions shown are in millimetres. Letters correspond to the manufacturer’s A–N dimension table for the 430 4BC stainless steel casement hinge.
Frequently Asked Questions
When should I select the NF version?
Select the NF version when a window control mechanism provides opening resistance and hinge friction is not required.
What sash width can this hinge support?
Maximum sash width is 1000mm.
Is this suitable for top hung windows?
No. The 4BC Series is designed for projecting side hung windows only.
Additional Information
- Select hinge based on sash width and weight.
- Recommended where window height is approximately twice window width.
- No fire rating stated in manufacturer documentation.
Interlock Projected Window Hardware Catalogue
ASSA ABLOY Manufacturer Warranty
Covered under official ASSA ABLOY warranty terms.
View full warranty details.
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.