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Carriage Bolts & Hex Nuts M10 x 180mm (Bag of 2)
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Cup Square Carriage Bolts & Hex Nuts M10 x 180mm (Bag of 2)
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Description
Timber Fixings
Carriage Bolts and Hex Nuts M10 x 180mm Bag of 2
Attaching heavy ironmongery or structural timber requires a reliable fixing that prevents rotation while maintaining a flush aesthetic. These M10 carriage bolts provide the necessary grip for substantial outdoor projects where security and structural integrity are the primary goals for the installer during the assembly process.
Every bolt in this pair features a high-grade zinc plating that shields the steel core from corrosion when exposed to fluctuating weather conditions. The domed head offers a clean finish on the visible side of your timber frame, which allows for a professional look while the square shoulder locks into the wood to stop spinning while you tighten the nut.
180mm
BOLT LENGTH
M10
THREAD DIAMETER
17mm
NUT SIZE A/F
2 Pcs
PACK QUANTITY
Why Choose the Carriage Bolts and Hex Nuts M10 x 180mm Bag of 2
These fixings offer a straightforward solution for heavy timber connections that require a secure, non-rotating fit.
Anti-Spin Square Shoulder
The squared section immediately below the domed head bites firmly into your pre-drilled timber as you tighten the nut. This clever design prevents the bolt from rotating inside the hole, which allows you to fasten the nut securely without needing a second spanner to hold the bolt head from the other side.
Durable Zinc Finish
The zinc plating acts as a protective layer against moisture and common outdoor environmental factors. By choosing this coating, you ensure that the steel remains protected against early signs of oxidation, which is helpful if you are using these bolts for gates, garden structures, or other exterior timber projects around the home.
High Tensile Strength
These M10 bolts are manufactured to handle the pressures associated with clamping thick timber components together effectively. You can rely on the quality of the thread and the provided hex nut to maintain consistent tension over time, which keeps your timber joints tight even when the wood naturally expands or contracts slightly.
Engineering Quality and Daily Performance
Precision manufacturing ensures that these components work together perfectly for demanding timber assembly tasks.
Load Bearing Efficiency
The diameter of the bolt shank is carefully calibrated to provide maximum contact area within the drilled hole of the timber. This distribution of load is important because it stops the bolt from digging into the wood fibers and weakening the connection when weight is applied to your gate or fence post structure.
Because the M10 thread is cut with high accuracy, the hex nut travels smoothly along the shaft during the initial fitment phase. This saves you significant time on site and reduces the risk of cross-threading, which is a common problem with lower quality hardware that might otherwise require excessive force to tighten properly.
Material Integrity and Surface Protection
Steel provides the core strength needed to keep structures stable, but it requires the right surface finish to survive in the British climate. Zinc plating is a standard choice for these applications because it creates a barrier against water and dirt, which prevents the build-up of rust that would otherwise compromise the structural security.
Over long periods, the finish maintains its protective properties, which means your project retains its structural integrity without needing frequent adjustments or replacements. This provides peace of mind for the home owner, as the fixings stay functional throughout the changing seasons without losing their original aesthetic or mechanical grip on the timber.
Installation and Operational Workflow
Following these steps helps you achieve a tight, clean finish every time you fit these carriage bolts.
1
Preparation of the Pilot Hole
Measure the thickness of your timber and check that the 180mm length is sufficient for the job. Drill a pilot hole with a 10mm bit through both sections of wood that you want to join together. Make sure the hole is perfectly straight because a crooked hole will prevent the bolt from sitting flush against the surface.
2
Seating the Bolt Head
Push the bolt through the hole until the square shoulder makes contact with the timber. Use a light hammer tap on the domed head to embed the square shoulder into the wood, which locks the bolt in place. This step is necessary to stop the head from spinning when you reach the final tightening phase.
3
Securing the Hex Nut
Thread the nut onto the bolt by hand until it touches the timber. Use a 17mm spanner or socket tool to tighten the nut until the joint is firm and the timber pieces are pulled together. Avoid over-tightening as this can crush the wood fibers and reduce the overall strength of your finished assembly.
Expert Installation and Care Tip
When installing into soft timber, a small washer under the nut can help distribute the pressure more evenly across the surface. This simple addition prevents the nut from sinking into the wood and allows for a more controlled tightening process that protects the finish of your project for years to come.
Technical Specifications
| Feature | Rating / Standard | Practical Details |
|---|---|---|
| Head Type | Domed | Provides a smooth, snag-free finish on the outside of your project. |
| Thread Diameter | M10 | Standard size for most medium to heavy ironmongery applications. |
| Bolt Length | 180mm | Ideal for fastening heavy fence posts or gate framing timber. |
| Nut Size | 17mm | Fits a standard 17mm socket or open-ended spanner easily. |
| Plating | Zinc | Protects against corrosion in external and damp environments. |
| Pack Quantity | 2 Pcs | Convenient pack size for smaller maintenance or repair tasks. |
Longevity and Trade Reliability
These bolts are built to withstand the rigors of frequent use in outdoor timber structures where reliability is expected. By selecting these high-quality components, you ensure that your work remains secure and professional for the long term, reducing the need for maintenance or future hardware replacements.
Compatibility and Fitting Notes
This bolt is designed primarily for use in timber. If you are attaching metal to metal, verify that the square shoulder has a compatible housing to prevent rotation.
Always check your drill bit diameter before starting to ensure the 10mm bolt passes through with a snug fit rather than a loose, wobbly movement.
Keep these bolts away from excessive chemical exposure as this can accelerate the wear on the zinc coating, which might lead to surface rust over time.
Specification
| Finish | Zinc |
|---|