BS 4174-16-1972
Type D inch slotted pan head tapping cutting screw-Table 16
BS 4174-17-1972
Type AB cross recessed with type Z pan head tapping screw-Table 17
BS 4174-17-1972
Type B cross recessed with type Z pan head tapping screw-Table 17
BS 4174-17-1972
Type BT cross recessed with type Z pan head tapping cutting screw-Table 17
BS 4174-17-1972
Type A cross recessed with type Z pan head tapping screw-Table 17
BS 4174-17-1972
Type T inch cross recessed with type Z pan head tapping cutting screw-Table 17
BS 4174-17-1972
Type D inch cross recessed with type Z pan head tapping cutting screw-Table 17
BS 4174-18-1972
Type AB slotted mushroom head tapping screw-Table 18
BS 4174-18-1972
Type B slotted mushroom head tapping screw-Table 18
BS 4174-18-1972
Type BT mushroom head tapping cutting screw-Table 18
BS 4174-18-1972
Type A mushroom head tapping screw-Table 18
BS 4174-18-1972
Type T inch mushroom head tapping cutting screw-Table 18
BS 4174-18-1972
Type D inch mushroom head tapping cutting screw-Table 18
BS 4174-20-1972
Type AB cross recessed with type Z recess dimensions for flange head tapping screw-Table 20
BS 4174-20-1972
Type B cross recessed with type Z recess dimensions for flange head tapping screw-Table 20
BS 4174-20-1972
Type BT cross recessed with type Z recess dimensions for flange head tapping cutting screw-Table 20
BS 4174-20-1972
Type A cross recessed with type Z recess dimensions for flange head tapping screw-Table 20
BS 4174-20-1972
Type T inch cross recessed with type Z recess dimensions for flange head tapping cutting screw-Table 20
BS 4174-20-1972
Type D inch cross recessed with type Z recess dimensions for flange head tapping cutting screw-Table 20
BS 4174-21-1972
Type AB hexagon head tapping screw-Table 20