Timco Carriage Bolts & Hex Nuts - Silver

Name: Timco Carriage Bolts & Hex Nuts - Silver
Brand: TIMco
SKU: gnejdraeff
Availability: InStock

A domed head bolt with a square anti spin shoulder mainly used for clamping timber or attaching ir...

Best current price£1.24from Power Tools Direct

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Timco 0.0 X 75Mm Carriage Bolts & Hex Nuts - Zinc - Timpac Of 3 1075Cbp

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TIMCO BZP Carriage Bolt and Hex Nut - M8 x 50 - Zinc - Pack of 4

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AmazonTIMCO BZP Carriage Bolt and Hex Nut - M8 x 50 - Zinc - Pack of 4

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Product Information

Full details

The Timco Carriage Bolts & Hex Nuts are an essential hardware solution for woodworkers, carpenters, and DIY enthusiasts who need a reliable way to secure timber structures or mount heavy-duty ironmongery. Featuring a distinct domed head and a square anti-spin shoulder, these bolts provide a secure grip that prevents rotation during tightening, ensuring a clean and stable finish. While these carbon steel bolts offer robust clamping strength, users should be aware that the zinc finish is primarily designed for indoor or protected environments and may require additional rust-prevention measures if used in extreme exterior conditions.

All features

Colour	Silver
Model Part Number	08150CBP
Brand	TIMco

Extended Product Information

FAQs

Can these bolts be used outdoors?

Yes, they feature a zinc finish which is suitable for many outdoor applications, though they are not marine-grade and may corrode in high-salt or constant wet environments.

Does the bolt come with a washer?

The product includes the bolt and a matching hex nut; washers are generally recommended but must be sourced separately based on your specific project load requirements.

How do I ensure the head sits flush?

After drilling your hole, place the bolt and use a hammer to gently tap the domed head so that the square shoulder beneath it creates a small indentation in the wood.

Are these bolts fully threaded?

These bolts are fully threaded up to and including 150mm in length.

What does the M8 designation mean?

M8 refers to the metric thread diameter, which is 8mm.

Troubleshooting

Bolt rotates while trying to tighten the nut

Ensure the square shoulder is fully seated in the wood by giving the dome head a firm tap with a hammer to sink the square neck into the timber fibers.

Bolt does not fit through the hole

Check that the hole is not obstructed by debris or wood shavings and verify that your drill bit size matches the bolt diameter.

Pros and Cons

Pros

Prevents rotation during installation thanks to the square shoulder
Provides a clean, aesthetic look with the smooth domed head
High structural integrity for timber connections
Includes pre-matched hex nuts in the package

Cons

Zinc coating may eventually corrode in high-moisture outdoor environments
Requires specific drill bit sizing for the square shoulder to seat correctly
Limited availability for shipping to certain remote geographical regions

Setup, Compatibility & Care

To install, ensure you have an appropriately sized drill bit (typically 8.5mm to 9mm for an M8 bolt) to allow the shank to pass through while keeping the square shoulder snug. If you are working with treated timber, ensure the bolt head is flush with the surface to prevent water traps. While the zinc finish provides good initial corrosion resistance, applying a thin coat of wax or a protective spray can prolong the lifespan of the bolts in damp sheds or workshops. Always check that the thread pitch matches your application requirements to avoid stripping during installation.