strut nut: 1.Material: SS 304 or 316;or mild steel; 2.Surface: ... /channel nut:Stainless Steel 304 or 316 channel spring nut:1.Material:stainless steel 304 or 316;or mild carbon steel ... 316 spring nut;(Size: M6,M8,M10,M12,1/4",5/16",3/8",1/2");4.Competitive price and good quality;5 ... ,M10*9.1mm,M12*8mm,M12*9.1mm,M12*11.9mm,1/4",3/8",5/16",1/2"; SS304 or SS316 M12(1/2") channel spring ...