**Material: Carbon steel C1022
**Feature: Black(grey)phosphate/zinc coated; Bugle head, Phillips type, fine thread(twin thread) / coarse thread, sharp point, hardened.
**Size: Dia: 3.5, 3.9, 4.2, 4.8(#6-#10) length: 19mm-150mm
3.5*193.9*254.2*324.8*38
3.5*253.9*324.2*384.8*50
3.5*283.9*354.2*504.8*75
3.5*323.9*384.2*554.8*90
3.5*353.9*414.2*634.8*100
3.5*383.9*454.2*754.8*110
3.5*413.9*504.2*804.8*120
3.5*453.9*554.2*904.8*140
3.5*50
**Usage: As fasteners, more and more widely used in hard wood, drop ceiling, furniture-making, gypsum board/plaster board decoration, sheet iron-machining, light steel joist and construction so on
**Package: 1000pcs/box, 12/20boxes/carton or in bulk or as you require