Description: Size : M2.9~M6.3 / #4~#14 / 1/4,5/16 Length : 9.5~300mm / 3/8~12" Material : Carbon Steel / Stainless Steel Drilling Point Type : #2/#3/#4/#5, Spoint, Reduced point, Type 17 Attachment : W/WO EPDM bonding washer W/WO Head painted (Liquid / Powder Paint Head ) Surface Treatment Zinc plated, Yellow Zinc plated, Black zinc, Zinc Nickel, Mechnical Galvanized, Ruspert?Slat Spray Test according to customer requirement. Standard : DIN, IFI, JIS, according to customer's drawing Package : Bulk packing, Box packing, Bag packing, Blister Product Usage Apply to metal plate, galvanized steel plate, metal curtain wall, metal light compartment, roofing construction. General angle steel, channel steel, iron plate, PC Board and other metal material combining installation