18mm Top Hung Square Groove window friction stay are range from 4 bar, 5 bar & 6 bar stainless steel (Grade 202) / Stainless Steel (SUS 304) friction stays which are used for the support and frictional control of projecting top hung window.

• Material: Stainless Steel 202 / Stainless Steel SUS 304
• Its composite stainless steel and nylon slider for strength, durability, and smooth operation
• Manufactured with the selected style of top hung windows
• Designed for standard style of top hung windows
• Easily adjust the opening angle by joints
• Works well after over loading tests of 50000 times