Flat round head
Reduced shank
Normal shank
Full thread
Blank shank
GOST R55738-8-2013
Welding-Studs and ceramic ferrules for arc stud welding-Types US-Unthreaded stud-Table 8
GOST R55738-11-2013
Welding-Studs and ceramic ferrules for arc stud welding-Types UT-Unthreaded stud-Table 11