Diall M6 Coach Bolt & Nut - 80mm - Pack Of 10
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Product Information
Full details
The Diall M6 Coach Bolt & Nut set is an essential fastening solution for DIY enthusiasts and homeowners tackling timber construction or repair projects. These fasteners provide a secure and stable hold thanks to their robust zinc-plated design, though their specific 80mm length and M6 diameter mean they are best suited for medium-duty woodwork rather than high-load structural steel applications.
All features
| Brand | Diall |
|---|
Extended Product Information
FAQs
Can these bolts be used outdoors?
Yes, the zinc-plated finish offers good resistance to corrosion, making them suitable for outdoor timber projects.
Do I need to drill a hole before using these?
Yes, drilling a pilot hole approximately 6mm in diameter will make installation much easier and prevent the wood from splitting.
What tools do I need for installation?
You will need a hammer to set the bolt head and a wrench or socket set to tighten the nut.
Are these bolts reusable?
Yes, provided the threads remain intact and the bolt shank is not bent, you can remove and reuse them for other projects.
Can I use these for metal-to-metal connections?
These are designed specifically for timber; they are not recommended for metal-to-metal applications where the square neck cannot lock into place.
Troubleshooting
Bolt spins when trying to tighten the nut
Ensure the square shoulder under the head is fully embedded into the wood by tapping the bolt head with a hammer.
Wood is splitting during bolt insertion
Drill a properly sized pilot hole before inserting the bolt to relieve tension in the wood fibers.
Nut feels loose despite tightening
Check that you are using a standard washer to provide a larger surface area and ensure the timber has not compressed.
Pros and Cons
Pros
- High-quality zinc plating resists rust in outdoor settings
- Square shoulder design locks bolt in place during installation
- Durable steel construction ensures reliable fastening
- Perfect for standard timber-to-timber connections
Cons
- Limited thread length may require washers for thinner materials
- Not intended for heavy-duty load-bearing structural engineering
- Fixed length of 80mm may not suit every project thickness
Setup, Compatibility & Care
To install these bolts, follow these simple steps:
- Drill a 6mm hole through the pieces of timber you intend to join.
- Insert the bolt through the hole and tap the head lightly with a hammer until the square shoulder is embedded in the wood.
- Slide the nut onto the threaded end and hand-tighten until secure.
- Use a wrench or socket set to tighten until the nut is snug against the surface or washer.
Compatibility note: Ensure your wood thickness is sufficient to allow the bolt to pass through completely, but not so thick that the thread fails to engage. For maintenance, check the nuts periodically if the wood expands or contracts due to seasonal humidity, and tighten if any slack develops over time.