Hardened steel decking screw with Maxxtect anti-corrosion coating for outdoor use and double-reinforced collar to prevent snapping. Suitable for use in hardwood, softwood and composite decking. Sharp point offers immediate start, even in hard and smooth surfaces. No pilot hole or pre-drilling required due to consistently angled slash-point and sharp saw-tooth formation, also preventing splitting. Features reduced-diameter, self-countersinking head, providing clean, flush finish and preventing damage to decking profile. Torx drive minimises slipping and cam-out and locking thread securely clamps boards to joists. Suitable for screwdrivers, combi drills and impact drivers. Requires TX20 bit (supplied). 12-Groove Countersunk for a Smooth & Flush Finish Optimised Thread to Reduce Torque & Prevent Jacking of Timber CR-10 Coating Hardened Steel Construction Maxxtect Exterior Corrosion Protection Partially Threaded 12-Groove Countersunk for a Smooth & Flush Finish Optimised Thread to Reduc...