Hex chamfered single face
Hex with flange
Flat round head
T-head
Hex with hole
Straight-knurl
Reduced shank
Normal shank
Shoulder
Full thread
JIS/JASO C610-1-1979
Center Rib 1st Class Bolts of Automobiles(d=d1)-Table 1
Center Rib 1st Class Bolts of Automobiles(d≠d1)-Table 1