... 3/8"~8" (9.5mm~203mm)Recess: Phillips Drive, Square Drive, Pozi Drive, Slot Drive, Unslot, Phillips/Slot, 6 ... Type BSD, Type ASD, Type CSD, With Wings, With Cutting Thread, With Notch, With Flute, Doubled Thread, With ShoulderPoint: #1 point, #2 point, ... , Class 3, Class 4, Other Special CoatingAssembled: with EPDM washer, With PVC washer, With EPDM bonded washerOthers: Under Cut under Head ,U/C ...