Hex Socket Head Cap Screw (Cap Screw) I = 4 (With Built-in SW+ISO Compact W)

[Materials] Steel, Stainless steel
[Surface treatment] None, black iron oxide coating, trivalent chromate, trivalent black, trivalent white, bright chromate plating, chromate plating, black chromate, nickel plating, chrome plating, tin cobalt, black paint