BS 1981-4-1991
80°Slotted countersunk head screws-Table 4
BS 1981-5-1991
80° Countersunk flat head screws with type Z cross recess-Table 5
BS 1981-6-1991
80°Slotted countersunk head screws(truncated)-Table 6
BS 1981-7-1991
80° Countersunk flat head screws with type Z cross recess(truncated)-Table 7
BS 1981-8-1991
80°Slotted Countersunk raised head screws-Table 8
BS 1981-9-1991
80°Countersunk raised head screws with type Z cross recess-Table 9
BS 1981-10-1991
80°Slotted Countersunk raised head screws(truncated)-Table 10
BS 1981-11-1991
80°Countersunk raised head screws with type Z cross recess(truncated)-Table 11
BS 1981-12-1991
Slotted pan head screws-Table 12
BS 1981-13-1991
Pan head screws with type Z cross recess-Table 13
BS 1981-14-1991
Slotted raised cheese head screws-Table 14
BS 1981-1991
Recessed raised cheese head screws with type Z cross recess-Table 15
BS 4168-1-1981
Metric hexagon socket cap head screws
BS 4168-1-1981
Metric hexagon socket knurled heads cap screws
BS 2470-2A-1973
UN hexagon socket plain heads cap screws-Table 2A
BS 2470-2B-1973
BS hexagon socket plain heads cap screws-Table 2B
BS 2470-3-1973
UN hexagon socket countersunk head screws-Table 3
BS 2470-4-1973
UN hexagon socket button head screws-Table 4
BS 2470-5-1973
UN rough pole hexagon socket head shoulder screws-Table 5
BS 2470-6A-1973
UN hexagon socket head set screws with cup point-Table 6A