carbon steel hex hd bolt black 1.ISO 9001:2008 CERRTIFICATION 2.DIN933 din931 3.M5--M64 1/4-2'' 4. grade 4.8 5.8 8.8

carbon steel hex hd bolt black   

2. Stainless stell hex head bolt  DIN931/DIN933

The main products are stainless steel hex head bolts, hexagon socket setscrews, machine screws, expansion screws, ground screws, U-bolts and others. By using good quality raw materials at home and abroad, we can produce goods according to GB, DIN, ANSI, JIS and ISO standards or manufacture products according to the drawing samples given by customers.

The main material :  1. stainless steel :  SS304  SS316  201  667  668

                    2. carbon steel ( Iron ): grade  4.8  5.8  6.8  8.8 and 10.9

                      Q215 Q235  ML35  35CrMoA 25CrMoVA 35CMrMo 45#

carbon steel hex hd bolt with black