1) Size: Diameter: M6~M80  
2) Material of Screws: Mild Steel(1010, 1015, 1020, 1025), Middle Carbon Steel(1030, 1035), High Carbon Steel (1040, 1045, 1050, 1055), Stainless Steel(202, 302, 304), Alloy steel, Brass  
3) Finish: Chrome Plated, Zinc Plated, Nickel Plated, Silver Plated, Gold Plated...  
4) Produce according to customers' drawings or samples  
5) Supply with fastener including nut, washer, rivet, pin, bolt and unstandard fasteners