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The Forgefix Coach Bolt & Nut (M12 x 100, 5 Pack, Silver) is an essential fastening solution for those tackling timber construction projects, offering a secure and stable connection. Its key benefit lies in its square neck design, which effectively prevents twisting when installed in timber, ensuring a robust hold. However, it's important to note that these bolts are specifically designed for low load bearing applications, meaning they are best suited for tasks like garden furniture assembly, pergolas, and fence panel fixing rather than structural, high-stress connections.
| Colour | Silver |
|---|---|
| Model Part Number | 5CB12100 |
| Brand | Forgefix |
'M12' refers to the nominal diameter of the bolt's thread, which is 12 millimeters. '100' refers to the length of the bolt from the underside of the head to the tip, which is 100 millimeters.
Yes, these Forgefix Coach Bolts are zinc-plated, which provides a level of protection against rust and corrosion, making them suitable for various outdoor applications like garden furniture and pergolas. However, in extremely harsh or marine environments, additional protection or a more specialized coating might be beneficial.
No, these Forgefix Coach Bolts are explicitly designed for 'low load bearing applications.' They are excellent for general timber joining but should not be used for critical structural elements or where high stress and heavy loads are expected.
Yes, it is highly recommended to pre-drill a pilot hole. This ensures the bolt passes smoothly, prevents the timber from splitting, and allows the square neck to properly embed itself, stopping the bolt from spinning during tightening.
You will typically need a drill with an M12 (or appropriate) drill bit for the pilot hole, a hammer (for seating the square neck), and a spanner or wrench sized for an M12 hex nut to tighten the bolt.
This product comes in a '5 Pack,' meaning you will receive five Forgefix Coach Bolts, each accompanied by its corresponding M12 hex nut.
This often occurs if the square neck of the coach bolt is not fully seated into the timber. Ensure the pilot hole for the bolt shank allows for a snug fit for the square neck to embed itself. You may need to gently tap the bolt head with a hammer to fully seat the square neck into the wood before tightening the nut.
Verify that the drill bit used for the pilot hole matches the M12 diameter of the bolt shank. If the hole is too small, the bolt will not pass through easily. If the hole is too large, the square neck may not properly bite, causing the bolt to spin. Ensure correct drill bit size.
This can happen if the pilot hole is too small, or if the bolt is inserted too close to the edge of the timber. Ensure your pilot hole diameter is appropriate for the bolt shank, and consider increasing the distance from the timber's edge. Using a slightly larger pilot hole in softer woods or pre-drilling the square part can sometimes help prevent splitting.
