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
BS 4174-14-1972
Type A slotted truncated raised countersunk head self tapping screw-Table 14
BS 4174-14-1972
Type T inch slotted truncated raised countersunk head self tapping cutting screw-Table 14
BS 4174-14-1972
Type D inch slotted truncated raised countersunk head self tapping cutting screw-Table 14
BS 4174-15-1972
Type AB cross recessed with type Z truncated raised countersunk head self tapping screw-Table 15
BS 4174-15-1972
Type B cross recessed with type Z truncated raised countersunk head self tapping screw-Table 15
BS 4174-15-1972
Type BT cross recessed with type Z truncated raised countersunk head self tapping cutting screw-Table 15
BS 4174-15-1972
Type A cross recessed with type Z truncated raised countersunk head self tapping screw-Table 15
BS 4174-15-1972
Type T inch cross recessed with type Z truncated raised countersunk head self tapping cutting screw-Table 15
BS 4174-15-1972
Type D inch cross recessed with type Z truncated raised countersunk head self tapping cutting screw-Table 15
BS 4174-16-1972
Type AB Slotted pan head tapping screw-Table 16
BS 4174-16-1972
Type B Slotted pan head tapping screw-Table 16
BS 4174-16-1972
Type BT Slotted pan head tapping cutting screw-Table 16
BS 4174-16-1972
Type A Slotted pan head tapping screw-Table 16
BS 4174-16-1972
Type T inch slotted pan head tapping cutting screw-Table 16