... thickness. window hinge window friction stay1.Spec:8",10",14",16",18",20" to 28"2.Thickness:2.0mm ... :Friction stay, window hinge,friction hinge,window hardware,four bar hinge,hinge,window accessory,window fitting,handleMaterial:SS304#,SS301#, ... ,18mm,15mm,13.5mm Length:6",8",10",12",14",16",18",20",22",24",26",28",30",32", ... 34",36".Bar thickness:2.0mm,2.5mm,3.0mm.Opening angle ...