Timco 80TCONR Concrete Screw - Tx - Flat Countersunk - Exterior - Silver 7.5 X 80 Box 100

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, Weight: 3.5053499658 Pounds, Manufacturer: TIMCO