Timco Concrete Frame Screws - TX30 - 7.5 x 110mm (4 1/2in) Box of 100

Timco Concrete Frame Screws - TX30 features:

• Size: 7.5 x 110mm (4 1/2in).
• Box of approximately 100.
• TX30 piece included.
• 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.
• Zinc plated and yellow passivated 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.
• All steel, non-flammable fixing conforming to BS 7671 standard's 18th edition, which requires wiring systems to be supported by materials which are unlikely to prematurely collapse in the event of a fire.