.Friction hinge stay201,202,301,304# 2.Friction hinge stay: Size:8"--36". 3.Friction Hinge Thickness:2mm-3mm friction hingeMaterial: stainless steel 201 or304Groove form: roundThickness: 3.0mmStack hinght:17mmSize: 20inchSlot Width: 18.00mmFour bar hinge, Friction hinge, windbreak, friction stay, window hardware, window accessory:: 1) Available in 20"2) Window friction hinge is made of high grade ...