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B&Q£8.78Visit shop B&Q - M6 6mm Coach Screws Length: 70mm ( Pack Of: 1 ) Hex Hexagon Head Lag Bolts Wood Screws Steel Zinc Plated Din 571
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The DIYUK 6mm x 70mm Coach Screws are designed for professional contractors and dedicated DIY enthusiasts who require high-strength fastening for structural applications and heavy-duty home repairs. These screws provide the key benefit of superior holding power and easy installation due to their robust hex head design, though users should note that they require a pilot hole in denser hardwoods to prevent wood splitting.
| Brand | DIYUK |
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Yes, you will need a socket wrench, spanner, or a hex-head bit for your power drill that matches the head size.
Yes, the zinc-plated finish provides good resistance to environmental factors, though they should be kept away from constant standing water.
It is highly recommended for all hardwoods and is essential for softwoods to prevent the timber from splitting when the thick shank enters.
Yes, provided the threads are not damaged and the hex head has not been rounded off during removal.
The shank diameter is 6mm.
Ensure the pilot hole is the correct size. If it is too tight, the friction will prevent the screw from seating properly.
Check that the socket tool is the correct size and fully seated. Do not use an undersized wrench.
You have likely skipped the pilot hole step or the pilot hole is too small; back out the screw, widen the hole slightly, and re-insert.
To achieve the best results, always measure your material thickness to ensure the 70mm length provides adequate penetration without protruding through the reverse side.
