This standard specifies the performance and corresponding test methods of carburized steel self-tapping screws. The thread should comply with GB/T 5280, and the thread specification is ST2.2-ST8.
GB/T 3098.5-2000 history
2016GB/T 3098.5-2016 Mechanical properties of fasteners.Tapping screws
2000GB/T 3098.5-2000 Mechanical properties of fasteners-tapping screws