Blue zinc-plated T-star MDF screws. Specially formed screw point reduces splitting and bulging. Ribs Under Head for Clean Countersinking Single Thread with Ground Serrations for Fast & Accurate Driving Zinc-Plated & Blue-Passivated Hardened Steel Construction...

High performance, self-countersinking woodscrews with no need to counterbore. Feature reinforced collar to prevent snapping, 2 x split-prevention slots, deep PZ recess to reduce risk of cam-out, tropicalised yellow coating for rust resistance and lubricated...

Extra-long durability when drilling concrete and stone. The combination of a carbide blend developed in-house by Bosch and diamond-ground cutting edges makes the bit extremely wear-resistant. Friction on the flute from drilled material is notably reduced...