... ,black oxide Features: Galvanzized/Zinc Plated Indented Hex washer Head socket Tapping Screw 1.tapping screw Standard DIN6928,JIS B1123 ... and etc as per need.4. Head type pan head,oval head, Flat head,Truss head,Hex Indent Washer Head, Fillister Head, Round Washer5. Drive systems philips, ... 6. Points JIS tapping screw M/M Type A, Type B, AISI tapping screw TYPE A, TYPE B (60 degree)7. Normal DiaST2.2 ...