... 14",16",18",20" 4,competitive good 4-bar heavy duty top side stays FBX224 • 22mm square slot, non ... -handed, heavy-duty friction stays. Suitable for till & turn casement ... of the hingeLength(inch)Slot Width(mm)Bar Width(mm)Bar Thickness(mm)Max Weight(kg)Opening Angle12” ... any necessary, welcome to contact us! 4-bar heavy duty top side stays FBX224(22mm suqare slot)