TIMCO Concrete Screws Flat Countersunk Silver - 7.5 x 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 Zinc plated for increased corrosion resistance High-Low thread on first 30mm to aid insertion and reduce torque Ideal for fitting windows and door frames Flat countersunk head with five locking ribs, Weight: 1.8959754532 Pounds, Manufacturer: TIMCO