The ForgeFix TechFast Masonry Hex Screw is a self-tapping, no stress alternative to plastic plugs. With an easy 2-step installation: drill a hole in substrate and screw in with a power tool. These screws have an 8mm Hex head with TORX® compatible recess. Protected by an Elementech coating, fire and corrosion resistant. Salt spray tested to 1,000 hours. Complies with EU Safety, Health and Environmental requirements. Supplied with a T27 Impact Bit. Ref: UTTK4818