... DIN7985, DIN7991 ASME B18.6.3 & SAE J82 specifications Machine ScrewsDIN84, DIN85, DIN963, DIN965, DIN966, DIN7985, DIN7991 ... pre-tapped to form a mating thread for screw.Specifications: Head: Pan head, Flat head, ... hex head, Indented hex washer head Recess: Phillips, Slotted, Phillips/Slotted, Hex, Slotted/Hex, Torx, Pozi, Square. Diameter: #2 - ... , Plain, Dacrotized, HDG, Bright brass. machine screw