hex head bolt DIN931
1.ISO9001:2008 CERTIFICATION
2.DIN931 DIN933 ISO4014 ASME18.2.1
3.M6-M30 1/4-2''
4.304 316 321

hex head bolt DIN931  A2  A4

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 materia      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#

1.

Hex head bolt with carbon steel