Reduced shank
Normal shank
Shoulder
Waisted shank
Full thread
Dog point
Semitubular end
T-shape end
Cone point
JB/ZQ 4756-2006
Anchor studs
JB/T 4707-2000
Type A double end studs
JB/ZQ 4324-2006
Type A double end studs b1=1d
Type B double end studs b1=1d
JB/T 8007.4-1999
Double end bolts