Material: C1022, 1022A
Diameter: M3.5/M3.9/M4.2/M4.8 or unstandard size
Finish: black/grey phosphate, zinc plated
Thread type: fine/twinfast thread, coarse thread
Head type: bugle head
l Drywall screw do much less damage to wood and are easier to remove and even be reused.
More and more widely used in wood,instead of wood screw,metal,all kinds of board.