DIYUK M12 x 100mm Hex Head Coach Screws, BZP Zinc Plated Lag Bolts, DIN 571 Timber Fixing Bolts, Pack of 1

Built for the heaviest jobs: a 12mm high-tensile carbon steel shank, the largest diameter in the coach screw range, gives far more shank strength and thread engagement than a lighter-gauge screw, finished bright zinc plated (BZP) for dependable general-purpose corrosion resistance. This 100mm length drives with the same 19mm spanner, socket or impact wrench as every other length in the range, with around 60mm of coarse wood-screw thread engaging the timber for a deep, secure grip. Suits demanding timber connections such as decking subframes, pergolas and carports, heavy-duty fence posts and gate hardware, and railway-sleeper retaining walls or raised beds; add a wall plug to fix straight into brick, block or concrete. Supplied as a single M12 x 100mm hex head coach screw, so you can buy exactly the quantity a job needs without over-ordering. Manufactured to the DIN 571 dimensional standard with a wood-screw thread to DIN 7998 (also called lag screws or lag bolts); pre-drilling a clearance and pilot hole is recommended, especially at this larger 12mm diameter.