Hex chamfered single face
Hex with flange
Flat round head
T-head
Hex with hole
Straight-knurl
Reduced shank
Normal shank
Shoulder
Full thread
QC/T 854-2011
Hex flange bolt with double end
Q 130-2012
Hex flange bolt with double end,d=d1
Hex flange bolt with double end,d≠d1