Hex bolt:

1)standard :DIN,ANSI,BS,JIS,ISO,GB

2)nomal size:M3-M64 10#3"

3)finish:black,yellow,zinc,white zinc,white blue zinc,H.D.G

4)grade of strenght:4.8.5.8,6.8,8.8,10.9,12.9

5)material:SWRCH8A,SWRCH35K,Q195LY,35#,45#,40CrMo,Mild steel,carton steel.

6)packing:carton or bag in a stronger pallet also according to the clients' requirment