Product Feature: 1.Material : carbon steel 1022,1008 2.Surface treatment: Black/Grey phosphated, white zinc plated, yellow zinc plated 3.Size : 3.5*16~4.8*160mm 4.Thread: Fine thread, coarse thread 5.Point: Sharp point, drilling point 6.Head: Pan framing head, bugle head. Advantage: 1.High hardness 2.High and low temperature resistant 3.Multicolor choose 4.Competitive Price 5.Superior Quality, TUV CERT ISO9001:2000 quality assurance 6.Artificial stone without any radiation 7.Punctual Delivery 8.Supply wooden pallet 9.Meet different markets need: America, Europe, Asia, and so on. 10.Widely used in wood furniture, construction and so on. 25kgs bulk in carton then on the pallet.