countersunk chipboard screw: 1.Item:chipboard screw with special thread 2.Material:carbon steel 3.size: M2-M12 countersunk chipboard screw:1.Item:chipboard screw with special thread and square tail2.Material:carbon steel,stainless steel,brass3.Head type:pan head,flat head,truss hean,plain head4.Recess:pozi,philips,slotted,cambo,six-lobe5.Color:zinc plated,black,chrome or nickle plated6.Size:M2 to ...