7.5 X 72mm TX30 Csk Concrete Frame Screw

These strong countersunk frame screws are used to drive the screw through concrete using a TX30 impact torx bit.  Coates in yellow passivated zinc gives an element of corrosion protection, but its advisable to overcoat them with a pant if they will be exposed to damp for a length of time.

Ideal for fast frame fixing of most building or ground projects.