... .8 2.Screw Material:C1022 3.Thread:Fine/Coarse 4.Screw Finsh:Black/grey phosphating,Z/ ... P Fine thread bugle head drywall screws Products Details: ... 5~M4.8 Lenght: 15MM-150MM Material: C1022 Thread : Fine Head type: Bugle head, phillips drive, Drilling point Finish ... of the head Product size: Pictures show: 1. Fine thread 2. Coarse thread 3. Drilling point 4. ...