Super Drive TRADE TUB. Industry standard pozi recessed head, ribbed double Countersunk for a flush finish. Hardened steel for high torque loads. Zinc & yellow passivated coating. Fully threaded under 70mm for maximum holding power with 40 degree thread angle to give maximum pull out resistance and knurled thread to increase drive speed by up to 20%. Type 17 point for easier starting in all timbers. 4 x70mm, tub of 320.
