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
ASME/ANSI B18.2.1-4-1965
Hex cap screws-Table4
ASME/ANSI B18.2.1-5-1965
Heavy hex bolts-Table5