1.bugle head
2.phillips driver
3.fine thread
4.black phosphated

1.Material: C1022
2.Size:3.5*19mm,3.5*25mm3.5*30mm.etc
3.Feature: bugle head, coarse/fine thread, Phillips drive.
4.Finishing: phosphate(black/grey)
5.Packing:1000pcs/box,12-20boxes/carton
6.Usage: More and more widely used in hard wood, furniture-making, gypsum board, decoration, sheet iron-machining, light steel joist and construction so on