Screws(nails,fastener) 1.Material: carbon steel 2. Finishing: zinc plated. black. 3. Standard: DIN, BS, ANSI, JI Screws(nails,fastener)1.Material: carbon steel2.Size: 25-150,3.Finishing: zinc plated. black.4.Standard: DIN, BS, ANSI, JIS We can supply all kinds of standard screws Screws