SUS304 Stainless Steel Window Friction Stay Restrictor Hinge

This friction stay hinge arm is designed for casement windows, allowing you to freely control and lock the opening angle up to a maximum of 135°. Made from 304-grade stainless steel, it resists rust and corrosion while maintaining its shape and strength over long-term outdoor exposure.

Key Features:

• Adjustable Opening Angle – set your preferred ventilation angle, from fully closed up to 135° maximum, and the concave-convex ripple track holds the arm firmly in place against wind pressure
• 304 Stainless Steel Construction – anti-rust, corrosion-resistant, high hardness, and won't deform or degrade over time
• Left/Right Interchangeable – no need to identify handing before ordering; the same arm works on either side of the window
• Brass Adjustment Knob – a thickened, knurled brass cap allows smooth, comfortable angle adjustment without straining your hands
• Secure Ripple-Groove Track – the ridged track design increases friction resistance so the window stays fixed at your chosen angle, even in strong wind

Dimensions:

• Overall track length: 25cm / 9.83in
• Arm length: 18.5cm / 7.28in
• Track width: 1.3cm / 0.53in
• Track height: 1.6cm / 0.63in

Ideal for: uPVC, aluminium, and timber casement windows requiring a durable, adjustable friction stay with reliable wind resistance and secure locking at any angle.