BS 4174-11-1972
Type B cross recessed with type Z truncated countersunk head self tapping screw-Table 11
BS 4174-11-1972
Type BT cross recessed with type Z truncated countersunk head self tapping cutting screw-Table 11
BS 4174-11-1972
Type A cross recessed with type Z truncated countersunk head self tapping screw-Table 11
BS 4174-11-1972
Type T inch cross recessed with type Z truncated countersunk head self tapping cutting screw-Table 11
BS 4174-11-1972
Type D inch cross recessed with type Z truncated countersunk head self tapping cutting screw-Table 11
BS 4174-12-1972
Type AB slotted raised countersunk head self tapping screw-Table 12
BS 4174-12-1972
Type B slotted raised countersunk head self tapping screw-Table 12
BS 4174-12-1972
Type BT slotted raised countersunk head self tapping cutting screw-Table 12
BS 4174-12-1972
Type A slotted raised countersunk head self tapping screw-Table 12
BS 4174-12-1972
Type T inch slotted raised countersunk head self tapping cutting screw-Table 12
BS 4174-12-1972
Type D inch slotted raised countersunk head self tapping cutting screw-Table 12
BS 4174-1972
Type AB cross recessed with type Z raised countersunk head self tapping screw-Table 13
BS 4174-13-1972
Type B cross recessed with type Z raised countersunk head self tapping screw-Table 13
BS 4174-13-1972
Type BT cross recessed with type Z raised countersunk head self tapping cutting screw-Table 13
BS 4174-13-1972
Type A cross recessed with type Z raised countersunk head self tapping screw-Table 13
BS 4174-13-1972
Type T inch cross recessed with type Z raised countersunk head self tapping cutting screw-Table 13
BS 4174-13-1972
Type D inch cross recessed with type Z raised countersunk head self tapping cutting screw-Table 13
BS 4174-14-1972
Type AB slotted truncated raised countersunk head self tapping screw-Table 14
BS 4174-14-1972
Type B slotted truncated raised countersunk head self tapping screw-Table 14
BS 4174-14-1972
Type BT slotted truncated raised countersunk head self tapping cutting screw-Table 14