Forgefix Coach Bolt & Nut - M8 x 130mm - White

'M8' refers to the metric thread diameter of 8 millimeters. '130' refers to the length of the bolt, which is 130 millimeters, measured from under the head to the tip of the thread.

No, these Forgefix Coach Bolts are specifically designed for low load-bearing applications. They are not intended for heavy structural elements where significant weight or stress will be applied and should not be used in primary structural supports.

Yes, it is highly recommended to drill a pilot hole. This prevents splitting the timber, ensures the bolt goes in straight, and helps the square neck embed properly to prevent spinning during tightening.

The bolts are made from steel and are zinc-plated. The zinc-plating provides a protective layer against corrosion, making them suitable for outdoor use and helping to extend their lifespan.

While not strictly required for the bolt's basic function, using flat washers under both the bolt head and the nut is often recommended. Washers distribute the load more evenly, prevent the nut or bolt head from damaging the timber surface, and can help prevent the bolt head from sinking into softer woods.

This specific product is a 10-pack, meaning it includes 10 M8 x 130mm coach bolts, each complete with its corresponding hex nut, providing a full set for your project.

Yes, you can paint these zinc-plated bolts if you wish to match them to your project's aesthetic. Ensure the surface is clean and dry before applying a suitable metal primer followed by your chosen topcoat for best adhesion and durability.

Ensure the square neck of the coach bolt is fully embedded into the timber. If it's not, gently tap the bolt head with a hammer until the square neck bites firmly into the wood. If the timber is too soft or the pilot hole is too large, the square neck may not hold; consider using a washer under the bolt head to increase surface area or selecting a slightly smaller pilot drill bit for future applications.

Check for any damage or burrs on the bolt's thread or inside the nut. Clean the threads if necessary. Ensure you are using the correct M8 nut for an M8 bolt. Start threading by hand to ensure it's not cross-threaded before using a wrench. If severely damaged, replace the bolt and nut with new ones from the pack.

This could indicate that the timber has compressed or that the pilot hole was too large, allowing excessive movement. For better compression, use washers under both the bolt head and the nut to distribute pressure. If the timber compresses significantly over time, you may need to re-tighten the nut. For new installations, ensure the pilot hole size is appropriate to provide a snug fit for the bolt shaft.