TRX Tamper-proof Pan Head Machine Screw

[Material] Stainless steel
[Surface treatment] None, non-chrome black, trivalent chromate non-chrome plating white, trivalent black, trivalent white, bright chromate plating, chrome plating, green chromate, black chromate, nickel plating, chrome plating, parker, trivalent stainless coating, copper CU plating, German brown plating, black paint, tempered color (dark)