Cross recess
Pozidriv recess
Round head
Countersunk head
Raised countersunk head
Round head with collar
Undercut countersunk head
Raised Undercut countersunk head
Low cheese head
Raised cheese
Reduced shank
Normal shank
Waisted shank
Full thread
Flat point
Cone point
BS 450-12-2012
Cross recessed 90° oval countersunk flat head screws-Table 12
BS 450-12-2017
BS 450-13-2012
Cross recessed round Head Screws-Table 13
BS 450-13-2017