... cutting/Slotting, Heat treatment, Plating, Anti-slipping patchCategory: 1. by components Bolts, Screw bolts/Studs, Nuts, Tapping screws, Wooden ... washer head, Hexagon socket button head and etc. 3. by type of drive inserts Phillilps, Slotted, Pillips/slotted combination, ... compliance,Standards: JIS, ANSI, DIN, GB, ASME, BSW Non-standard fastener orders are welcomed!Our fastener products are wildly used ...