... ; 3.Competitive price and best quality; Metal stamping part/Fastener/channel nut:Stainless Steel 304 or 316 channel spring nut:1.Material:stainless steel ... ;(Size: M6,M8,M10,M12,1/4",5/16",3/8",1/2");4.Competitive price and good quality;5.OEM service available ... *8mm,M12*9.1mm,M12*11.9mm,1/4",3/8",5/16",1/2"; SS304 or SS316 M12(1/2") channel spring nut