Multi-Fix Countersunk Concrete Screws 7.5 x 80mm (100/Box)

7.5 × 80mm Multi-Fix Countersunk Concrete Screws for direct installation into solid concrete, brick, block, or masonry substrates without the use of a plug.Manufactured from case-hardened carbon steel with a durable zinc-plated finish, they provide rapid installation, high pull-out resistance, and dependable torque control.The countersunk head produces a neat, flush finish ideal for visible or surface-mounted fittings, while the serrated single-thread design ensures fast cutting action and secure anchorage even in dense substrates.7.5 × 80mm sizing is suited to door frames, battens, and heavy boards fixed to block or brickwork.