Forgefix Carriage Bolt & Nut - M10 x 100mm - Bag 10 - White
Versatile fixings for low load bearing applications. Square neck prevents twisting when used in ti...Versatile fixings for low load bearing applications. Square neck prevents twisting when used in timber. These coach bolts and nuts have a place in almost every toolbox. They're zinc-plated and 100 mm long with an M10 thread. They are mainly used for joining timber to timber in low load-bearing applications, as well as timber joist construction. So whether you're assembling garden furniture, making a pergola or fixing fence panels, these coach bolts will provide fastenings strong enough to withstand the elements.* Versatile fixings for low load bearing applications* Square neck prevents twisting when used in timber* Pack of 10 bolts complete with hex nut
Designed for DIY enthusiasts and professionals tackling light timber construction, the Forgefix M10 x 100 Coach Bolts offer a secure and reliable fastening solution for timber-to-timber connections. Their unique square neck prevents twisting during installation, ensuring a stable joint, though it's crucial to remember they are intended for low load-bearing applications only. This pack includes 10 zinc-plated bolts with matching hex nuts.
All features
Colour
White
Model Part Number
10CB10100
Brand
Forgefix
Extended Product Information
FAQs
What are Forgefix Coach Bolts primarily used for?
These coach bolts are primarily used for joining timber to timber in low load-bearing construction projects, such as assembling garden furniture, building pergolas, fixing fence panels, or connecting non-critical timber joists.
What does 'low load bearing' mean?
Low load bearing means the bolts are designed for applications where they will not be subjected to significant structural weight or high stress. They are suitable for general assembly and decorative purposes, not for main structural components that support heavy loads.
Do I need to drill a pilot hole before inserting the bolt?
Yes, it is essential to drill a pilot hole through the timber. This prevents the wood from splitting and ensures the bolt can be inserted correctly. The pilot hole size should be slightly larger than the bolt shank but allow the square neck to bite into the wood.
Are these bolts suitable for outdoor use?
Yes, the zinc-plated finish provides good corrosion resistance, making them suitable for both indoor and sheltered outdoor applications. For prolonged exposure to harsh weather, additional protective measures like paint or sealant over the bolted area can extend their lifespan.
How many bolts and nuts are included in one pack?
Each pack contains 10 Forgefix Coach Bolts, and each bolt comes complete with its corresponding hex nut.
What tools are required to install these coach bolts?
You will typically need a drill with an appropriate drill bit (e.g., 10.5mm or 11mm for an M10 bolt), a hammer to seat the square neck, and a spanner or wrench. For an M10 hex nut, a 17mm or 16mm spanner is usually required. Info needed: [confirm exact spanner size for M10 hex nut].
Can I use these bolts for joining metal components?
While you can use them to attach timber to thin metal brackets, these bolts are primarily designed for securing into timber. The square neck is specifically for preventing rotation in wood, and they are not optimized for metal-to-metal applications.
Troubleshooting
Bolt head spins freely when tightening the nut.
The square neck of the bolt has not fully seated into the timber. Remove the nut, and gently tap the bolt head with a hammer to ensure the square section bites securely into the wood before retightening.
Nut is difficult to thread or tighten.
Check that the nut is aligned correctly with the bolt threads and is not cross-threaded. Ensure there is no debris or paint in the threads of either the bolt or the nut. If the issue persists, the threads may be damaged, and the bolt/nut should be replaced.
Timber is splitting when installing the bolt.
The pilot hole may be too small or the timber is too close to an edge. Ensure the pilot hole is appropriately sized for the M10 bolt, allowing for easy insertion without forcing. Consider drilling a slightly larger hole, or if the split is severe, select a new location or reinforce the timber.
The bolt appears too short or too long for my project.
Verify the thickness of the timber you are joining and compare it against the bolt's 100mm length. Always measure carefully before purchasing. If the length is incorrect, you will need a different size bolt.
Pros and Cons
Pros
Secure Fit: Square neck bites into timber, preventing rotation for a tight connection.
Corrosion Resistance: Zinc plating offers protection against rust in various conditions.
Versatile for Timber: Ideal for a range of timber-to-timber joining projects.
Complete Kit: Bolts and nuts are provided together in each pack for convenience.
Easy to Install: Simple design allows for straightforward application.
Cons
Low Load Bearing Only: Not suitable for high-stress structural applications.
Specific Size: M10 diameter and 100mm length may not fit all project requirements without careful planning.
Appearance: Zinc plating is functional, but a more decorative finish might be preferred for highly visible applications.
Setup & Installation
Measure and Mark: Determine the exact location for your bolt and mark the drilling point on your timber pieces.
Drill Pilot Hole: Using a drill bit with a diameter slightly larger than the M10 *shank* (e.g., 10.5mm or 11mm), drill through both pieces of timber. The square recess for the neck might require a slightly larger initial countersink or a firm hammer tap to seat the bolt head properly.
Insert Bolt: Push the coach bolt through the drilled holes.
Seat Square Neck: Gently tap the bolt head with a hammer to ensure the square neck bites firmly into the timber, preventing it from rotating.
Add Washer (Optional but Recommended): Place a washer over the bolt end on the other side of the timber for better load distribution and to prevent the nut from digging into the wood.
Tighten Nut: Thread the hex nut onto the bolt and tighten it with a spanner or wrench. Do not overtighten, as this can crush the timber or strip the threads, especially in softer woods.
Compatibility
Materials: Designed primarily for timber-to-timber connections. Can be used with thin metal plates as washers or reinforcement, but the primary material should be wood.
Hole Size: Requires a pre-drilled hole appropriate for an M10 bolt shank, with consideration for seating the square neck.
Load: Strictly for low load-bearing applications. Consult an engineer for high-stress or critical structural projects.
Care & Maintenance
Storage: Store coach bolts in a dry environment to prevent premature corrosion, even with their zinc plating. Keep them in their original packaging or a sealed container.
Inspection: Before use, inspect bolts and nuts for any signs of damage, rust, or thread imperfections. Do not use damaged fasteners.
Post-Installation: While zinc-plated, regular exposure to harsh outdoor elements over long periods may eventually lead to some surface corrosion. For maximum longevity in exposed outdoor settings, consider applying a protective sealant or paint over the bolted area.