Concrete Screws Flat Countersunk Exterior Silver – 7.5 x 100

A rapid and effective light duty anchoring system for fixing into concrete, brick, stone, concrete block and wood. This through fixing provides a single solution and replaces traditional fixings such as nylon frame and hammer fixings. Designed to replace traditional masonry fixings.TX30 TX Drive recess to reduce driver wear & prevent camming out.Serrated V-threads to achieve optimum insertion into all masonry types.Exterior plating gives a reliable and durable corrosion resistant coating which resists 500 hours salt-spray..High Low threads for ease of insertion.Ideal for fitting windows and door frames .