This standard specifies hexagon head bolt with thread specification is M5 - M64, performance rate is grade 3.6, 4.6 and 4.8, and production grade is grade C.
If any other technical requirements are required, it shall be selected from current standard (such as GB/T 196, GB/T 3106, GB/T 3098.1 and GB/T 3103.1).
This standard specifies hexagon head bolt with thread specification is M5 - M64, performance rate is grade 3.6, 4.6 and 4.8, and production grade is grade C.
If any other technical requirements are required, it shall be selected from current standard (such as GB/T 196, GB/T 3106, GB/T 3098.1 and GB/T 3103.1).