Multi-purpose screws designed for high performance in a multitude of materials. Twin-cut point (on 20mm+) gives consistent and rapid 'pick-up' and reduces timber splitting. Synthetic lubrication and dual-angle thread results in less insertion torque and quicker insertion time. Deep recess prevents 'cam-out' for precise and positive drive control. Ribs under head prevent splitting and material damage and offer improved countersinking for a smooth and flush finish. Contents: C2 screws (3.5 x 16 (480), 3.5 x 25 (350), 4 x 30 (250), 4 x 40 (350), 4 x 50 (100), 5 x 60 (65), 5 x 70 (55), 5 x 80 (100) and 5 x 100mm (45)) and 38mm power bits (3). Double-Countersunk Head with Underhead Ribs Carbon Steel Construction Zinc-Plated & Yellow-Passivated Low Friction Coating Single Thread Grips the Wood for a Secure Fix Fully Threaded Metal Storage Case Contents: C2 screws (3.5 x 16 (480), 3.5 x 25 (350), 4 x 30 (250), 4 x 40 (350), 4 x 50 (100), 5 x 60 (65), 5 x 70 (55), 5 x 80 (100) and 5 x 100mm...