Slot
Cross recess
6-Lobe
Hex chamfered single face
Hex with hole
Hex with shoulder
Hex chamfered double faces
Nylon Insert
Hole on shank
Straight-knurl
Reduced shank
Normal shank
Increased shank
Shoulder
Waisted shank
Full thread
Flat point
Cone point
Dog point
Semitubular end
GB 29-1976
Slotted hexagon bolts
GB/T 29.1-2013
Hexagon head bolts with slot on head
QJ 8035-2002
Hexagon bolts one slot
Hexagon bolts one slot with split pin hole on shank
GB/T 29.1-1988