Heat Treated Case Hardened to Prevent Snapping 40 Degree Thread Angle, 25 Degree Point Angle Pozi or torx drive, Materials: C1080-C1022 HARDENED STEEL/ STAINLESS STEEL Surface: Zinc, Yellow Zinc, Brass or Black Oxide available Packing: Small box packing(1000PCS/box then put in carton), bulk packing(25kg/CTN), DIYpacking.
