... screws, the head is the hexagon, the teeth are machine wire teeth, 1,Products DetailesMaterial1.Stainless Steel:SS201, SS303, ... ,DIN,JIS,ANSI,BSWManufacture ProcessHeading/washer assembly/Threading/Secondary machine/heat treatment/plating/Anti-slipping/Baking/QA/Package/ShippingSample ... , all kinds of hardware products, including nuts, flat pad and some other accessories.2,Factory Show We have 8 ...