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
GB/T 13806.2-1992
Cross recessed countersunk head cutting tapping screws,scrape point —Type B
IFI 502-7-1982
Type BT slotted head self tapping cutting screws-Table 7
IFI 502-8-1982
Type BT Cross recessed with type H countersunk head tapping cutting screws-Table 8
IFI 502-8-1982
Type BT Cross recessed with type Z countersunk head tapping cutting screws-Table 8
IFI 502-8-1982
Type BT Metric square slot countersunk head tapping cutting screws-Table 8
BS 4174-8-1972
Type BT slotted countersunk head self tapping cutting screw-Table 8
BS 4174-9-1972
Type BT cross recessed with type Z countersunk head self tapping cutting screw-Table 9
ASME/ANSI B18.6.4-9-1998
Type BT 80°slotted head self tapping cutting screw-Table 9
ASME/ANSI B18.6.4-10-1998
Type BT 80°cross recessed with type H countersunk head self tapping cutting screw-Table 10
ASME/ANSI B18.6.4-11-1998
Type BT 80°cross recessed with type Z countersunk head self tapping cutting screw-Table 11
ASME/ANSI B18.6.4-12-1998
Type BT type II 80°cross recessed with type H countersunk head self tapping cutting screw-Table 12
ASME/ANSI B18.6.4-17-1998
Type BT 80°cross recessed with type H recessed flat countersunk trim head self tapping cutting screw-Table 17
ASME/ANSI B18.6.4-17-1998
Type BT 80°cross recessed with type H recessed flat small countersunk trim head self tapping cutting screw-Table 17
ASME/ANSI B18.6.4-18-1998
Type BT 80°cross recessed with type Z recessed flat countersunk trim head self tapping cutting screw-Table 18
ASME/ANSI B18.6.4-18-1998
Type BT 80°cross recessed with type Z recessed flat small countersunk trim head self tapping cutting screw-Table 18
ASME/ANSI B18.6.4-19-1998
Type BT type II 80°cross recessed with type H recessed flat countersunk trim head self tapping cutting screw-Table 19
ASME/ANSI B18.6.4-19-1998
Type BT type II 80°cross recessed with type H recessed flat small countersunk trim head self tapping cutting screw-Table 19
ASME/ANSI B18.6.3-1-2013
Type BT slotted 80° countersunk head self tapping cutting screw-Table 1
ASME/ANSI B18.6.3-2-2013
Type BT Cross recessed 80° countersunk head self tapping cutting screw-Table 2
ASME/ANSI B18.6.3-2-2013
Type BT Cross recessed 80° countersunk head self tapping cutting screw-Table 2
