Round head
Countersunk head
Raised countersunk head
Undercut countersunk head
Raised Undercut countersunk head
Raised cheese
ASME/ANSI B18.6.3-2-2013
Type A Square slot 80° countersunk head self tapping screw-Table 2
ASME/ANSI B18.6.3-8-2013
Type A Square slot 80° oval countersunk head self tapping screw-Table 8
ASME/ANSI B18.6.3-10-2013
Type A Square slot undercut 80° countersunk head self tapping screw-Table 10
ASME/ANSI B18.6.3-12-2013
Type A Square slot undercut 80° oval countersunk head self tapping screw-Table 12
ASME/ANSI B18.6.3-19-2013
Type A square slot pan head self tapping screw-Table 19
ASME/ANSI B18.6.3-22-2013
Type A square socket raised cheese head self tapping screw-Table 22
ASME/ANSI B18.6.3-25-2013
Type A square socket truss head self tapping screw-Table 25
ASME/ANSI B18.6.3-36-2013
Type A square socket round head self tapping screws-Table 36
