Hex chamfered single face
Hex with flange
Round head
Countersunk head
Raised countersunk head
Hex with collar
Round head with collar
Countersunk head with rib
Undercut countersunk head
Bugle head
Raised Undercut countersunk head
Low cheese head
Raised cheese
Hex chamfered double faces
BS 4174-14-1972
Type BT slotted truncated raised countersunk head self tapping cutting screw-Table 14
ASME/ANSI B18.6.4-24-1998
Type BT 80°slotted truncated raised countersunk head self tapping cutting screw-Table 24
ASME/ANSI B18.6.4-25-1998
Type BT cross recessed with type H truncated raised countersunk head self tapping cutting screw-Table 25
ASME/ANSI B18.6.4-26-1998
Type BT cross recessed with type Z truncated raised countersunk head self tapping cutting screw-Table 26
ASME/ANSI B18.6.4-27-1998
Type BT Type II cross recessed with type H truncated raised countersunk head self tapping cutting screw-Table 27
ASME/ANSI B18.6.3-11-2013
Type BT slotted undercut 80° oval countersunk head self tapping cutting screw-Table 11
ASME/ANSI B18.6.3-12-2013
Type BT Cross recessed undercut 80° oval countersunk head self tapping cutting screw-Table 12
ASME/ANSI B18.6.3-12-2013
Type BT Cross recessed undercut 80° oval countersunk head self tapping cutting screw-Table 12
ASME/ANSI B18.6.3-12-2013
Type BT Square slot undercut 80° oval countersunk head self tapping cutting screw-Table 12
BS 4174-14-2013
Type BT slotted truncated raised countersunk head self tapping cutting screw-Table 14
BS 4174-15-2013
Type BT cross recessed with type Z truncated raised countersunk head self tapping cutting screw-Table 15
ASME/ANSI B18.6.4-27-2005
Type BT Type II cross recessed with type H truncated raised countersunk head self tapping cutting screw-Table 27
ASME/ANSI B18.6.4-26-2005
Type BT 80°cross recessed with type Z truncated raised countersunk head self tapping cutting screw-Table 26
ASME/ANSI B18.6.4-25-2005
Type BT 80°cross recessed with type H truncated raised countersunk head self tapping cutting screw-Table 25
ASME/ANSI B18.6.4-24-2005
Type BT 80°slotted truncated raised countersunk head self tapping cutting screw-Table 24
ASME/ANSI B18.6.4-19-1981
Type BT 80°slotted truncated raised countersunk head self tapping cutting screw-Table 19
ASME/ANSI B18.6.4-20-1981
Type BT cross recessed with type H truncated raised countersunk head self tapping cutting screw-Table 20
ASME/ANSI B18.6.4-20-1981
Type BT cross recessed with type Z truncated raised countersunk head self tapping cutting screw-Table 20
ASME/ANSI B18.6.4-20-1981
Type BT Type II cross recessed with type H truncated raised countersunk head self tapping cutting screw-Table 20
