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
IFI 513-8-1982
Metric hexagon head screws-Table 8
Metric small hexagon head screws-Table 8
IFI 541-1982
Metric hex transmission tower bolts
IFI 149-2000
Large size heavy hex screws