specializing in the manufacture of various standards of fasteners.It can provide Hex Head Bolts,Screws,Hex Socket cap Cheese Head Screws, Nuts, Washers, Rivets, etc.Fasteners especially large in size or long in length,non-standard or made of special materials can be provided. The specifications of products are as follows: Diameter:M5-M76; Length:10MM-1000MM; Standard:ISO,DIN,BS,ANSE/ASME,JIS,GB etc; Strength grade;4.6,4.8,6.8,8.8,10.9,etc.