FC218 Series Stainless Steel Positioning Window Restrictor Stay, 304 Stainless Steel 18mm Track Stay with Studded Groove for PVC & Light Aluminum Casement & Top-Hung Windows

FC218 series window positioning restrictor stay is manufactured from premium 304 stainless steel via precision stamping process, delivering excellent corrosion resistance, rust resistance and structural durability for long-term daily window operation. The 18mm wide slide track is sized for broad compatibility with standard PVC and light aluminum window profile systems, enabling straightforward installation and smooth sliding movement. Its slide track adopts a raised stud (groove dot) structural design, which effectively increases the friction between the sliding component and the track body, enabling secure stepless positioning at any desired opening angle. When used in conjunction with friction hinges, it further reinforces the window's positioning stability, wind load resistance and holding capacity, preventing unintended sash drift caused by wind pressure or external force. The support link arm comes in two thickness options: 2.0mm and 2.5mm, with length specifications covering 8", 10", 12", 14" and 16" to match different window dimensions, sash weights and required opening angles. This positioning stay is ideally suited for PVC (uPVC) and light aluminum casement windows and top-hung windows, widely applied in residential interior and exterior windows, apartment buildings and light commercial window renovation projects. Bulk wholesale orders and OEM customization services are fully supported to meet diverse project and distributor requirements.