FC2135 Series Stainless Steel Positioning Window Restrictor Stay, 304 Stainless Steel 13.5mm Track Stay with Studded Groove for 20mm European Groove Aluminum Windows

FC2135 series window positioning restrictor stay is manufactured from premium 304 stainless steel through precision stamping process, providing excellent corrosion resistance, rust resistance and structural durability for long-term outdoor window applications. The 13.5mm wide slide track is sized to fit standard European 20mm window groove systems, ensuring seamless compatibility and straightforward installation. Its slide track adopts a raised stud (groove dot) design, which effectively increases the friction between the sliding component and the track, enabling secure stepless positioning at any opening angle. When used in conjunction with friction hinges, it further enhances the window's positioning stability, wind resistance and holding performance, preventing unintended sash movement caused by wind or external force. The support link arm is available in two thickness options: 2.0mm and 2.5mm, with length specifications covering 8", 10", 12", 14" and 16" to match different window sizes, sash weights and opening angle requirements. This positioning stay is specially designed for 20mm European standard groove aluminum casement windows and top-hung windows, widely used in residential exterior windows, apartment buildings and commercial window renovation projects. Bulk wholesale orders and OEM customization services are fully supported to meet diverse project and distributor demands.