Hex socket
Hex socket with centre
Hex socket with pin
Round head
Countersunk head
Cheese
Round head with collar
Low cheese head
Cheese with hole
Straight-knurl
Normal shank
Shoulder
Waisted shank
Full thread
Flat point
Cone point
BS 2470G-2A-2017
UN hexagon socket plain heads cap screws-Table 2A
BS 2470G-2B-2017
BS knurled hexagon socket plain heads cap screws-Table 2B