Diall M6 Coach Bolt & Nut - L 70mm - Pack of 10
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Product Information
Full details
This pack of 10 Diall M6 coach bolts and nuts is designed for DIY enthusiasts and builders needing a reliable fastening solution for timber projects. The key benefit is their durable carbon steel construction and zinc plating for corrosion resistance, ensuring a secure and long-lasting hold. A minor caveat is that they are partially threaded, which may limit their use in applications requiring full thread engagement.
All features
| Brand | Diall |
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Extended Product Information
FAQs
What is the primary use for these coach bolts?
These M6 coach bolts and nuts are primarily recommended for joining timber in DIY projects and general construction.
What does 'partially threaded' mean for these bolts?
It means the bolt has a smooth shank section for a portion of its length before the threads begin. For these bolts, the unthreaded portion is approximately 18mm, which helps prevent timber splitting and provides a stronger hold when the smooth shank is pulled into the material.
Are these bolts suitable for outdoor use?
Yes, the zinc plating provides good resistance to rust and corrosion, making them suitable for outdoor applications like garden furniture or fencing, though continuous exposure to harsh elements may eventually affect the finish.
What tools are needed to install these bolts?
You will need a spanner or wrench to hold the nut in place and a suitable tool (like a flathead screwdriver or a wrench for the square neck under the head) to hold the bolt head still while tightening.
Can I use these bolts with metal materials?
While they might function, they are specifically designed and recommended for timber due to the partially threaded design and optimal grip in wood. Using them in metal may require different fastening solutions.
How many bolts are in a pack?
This pack contains 10 coach bolts and 10 corresponding nuts.
Troubleshooting
Bolt does not tighten properly
Ensure the nut is correctly aligned with the bolt threads. Check that the bolt shank is fully seated in the material before tightening. Verify that the materials are not too thick for the bolt's threaded portion.
Nut is difficult to thread onto the bolt
Check for any damage or debris on the bolt threads or inside the nut. Ensure you are using the correct M6 nut. Try applying a small amount of lubricant to the threads.
Bolt head is not sitting flush
Ensure the hole drilled is the correct size for the bolt shank. The cup square head is designed to sit flush, so verify the hole is not too large or the surface is not uneven.
Pros and Cons
Pros
- Durable and strong construction from carbon steel.
- Zinc plating provides good corrosion resistance.
- Suitable for common DIY and construction tasks.
- Pack quantity offers good value for small to medium projects.
- Designed for secure fitting into timber.
Cons
- Partially threaded design may not be suitable for all applications.
- Limited to M6 diameter and 70mm length, restricting some project designs.
- Primarily intended for timber, may not be optimal for metal or other materials.
- Requires appropriate tools for installation (spanner/wrench).
Setup, Compatibility & Care
Setup: To use the Diall M6 coach bolts and nuts, first drill a hole through the materials to be joined that matches the M6 diameter. Insert the coach bolt through the pre-drilled holes, ensuring the cup square head sits flush against the surface. Place the nut onto the threaded end of the bolt on the opposite side and tighten using a spanner or wrench until secure.
Compatibility: These coach bolts are specifically recommended for use with timber. They are compatible with standard M6 nuts and washers. Ensure the material thickness accommodates the 70mm bolt length and the partially threaded section.
Care: To maintain the integrity of the zinc plating and prevent corrosion, avoid prolonged exposure to highly acidic or alkaline environments. Clean any dirt or debris with a damp cloth. For extended outdoor use, periodic inspection for rust is advised.