This standard specifies the characteristics of hexagon socket set screws with dog point and threads from M1.6 up to and including M24, of property class 45H, A1-12H, A2-21H, A3-21H, A4-21H, A5-21H, CU2, CU3 as well as AL4 and of product grade A.
If, in special cases, technical requirements other than those listed in this standard are required, they should be selected from current standards, such as GB/T 193, GB/T 3098.3, GB/T 3098.16, GB/T 9145 and GB/T 3103.1.