... JIS; 4. Black, Zinc, Zinc Yellow, H.D.G; Hex Bolt, Hexagon Head Bolts, Hex Cap Screws,We produce the ANSI, DIN, ISO, BS ... and JIS Nuts and Bolts include standard hex Nuts, slotted hex Nuts, square ... Europe, Middle East, North American, and welcomed by our clients. Hex Bolt, Hexagon Head Bolts, Hex Cap Screws