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Coach Bolts 237 Items

Coach Bolts

Coach Bolts – A Tradefix Direct Guide

Coach bolts (aka carriage bolts or cup square bolts) are a staple construction fixing, ideal for timber to timber applications, and for attaching ironmongery to wood. But with so many options to choose from, how you decide which coach bolt is right for you? Here’s our guide.

When should I use coach bolts?

Coach bolts are the natural choice for most large building projects and can be suitable for interior and exterior applications. They are typically used at critical points within a structure to join wood to wood or wood to metal. They offer a far more secure option than nails, screws and many other bolt types.

Coach bolt sizes

You’ll see the product descriptions of our coachbolts have two dimensions: size and length. The length is obvious enough, but what does M8, M12 etc mean? M is simply the metric diameter of the bolt, so an M10 bolt has a thread diameter of 10mm, an M16 bolt is 16mm wide. Note that the M measurement applies to the thread, not the head of the bolt, which is always wider.

Parts of a coach bolt

Head: That broad head doesn’t just look good. It’s there to spread the surface load of the bolt so it doesn’t damage the wood or other material you’re bolting. For extra protection, consider choosing a washer.

Square section: Beneath the domed head, at the top of the shank is a short square block. It is designed to be countersunk into the timber and ensures that when the nut is tightened the bolt grips the timber and doesn’t simply spin. This part is what gives coach bolts yet another name: cup square bolts.

Shank: Take a close look at our Timco coach bolts and you’ll see a portion of the shaft is unthreaded. The same is true for some of our unbranded carriage bolts too. Why is that? A shank helps the bolt pull together the materials it is fixing. It also helps reduce friction and should make it easier to remove the bolt.

Which finish do I need?

Our coach bolts are available in a range of materials/finishes. Zinc plated bolts are typically the lowest cost option. Galvanised coach bolts are also, rather confusingly, zinc coated but the coating is thicker and offers greater protection. Stainless steel coach bolts are the most durable of all, because the corrosion resistance comes not from the coating but from the composition of the bolt (which combines steel with chromium).

Indoors and where the environment is dry and not subject to humidity, any of the bolts should be suitable. If you need coach bolts for exterior applications, or in damp or humid environments, galvanised bolts will offer greater corrosion resistance than zinc coated, whilst stainless steel would be the most durable option of all.

Buy coach bolts

No other UK coach bolts supplier offers a better combination of range, quality and value. Order your bolts now or, if you’re not sure which is the right bolt for your application, call us on 0161 794 1783. We’ll be happy to help.

 
 
Code: ZCB060 View
Zinc Plated Coach Bolts and Nuts - M16 x 180mm (Qty: 5)
Pack
7.92

Limited Stock

There are only 273 of this item in stock.

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Code: ZCB056 View
Zinc Plated Coach Bolts and Nuts - M12 x 300mm (Qty: 10)
Pack
11.83

Limited Stock

There are only 872 of this item in stock.

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If this is for a larger order, please contact us on 0161 794 1783 as we may be able to order this item for you.

Code: ZCB028 View
Zinc Plated Coach Bolts and Nuts - M10 x 100mm (Qty: 25)
Pack
5.23

Limited Stock

There are only 3519 of this item in stock.

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If this is for a larger order, please contact us on 0161 794 1783 as we may be able to order this item for you.

Code: ZCB031 View
Zinc Plated Coach Bolts and Nuts - M10 x 130mm (Qty: 25)
Pack
6.16

Limited Stock

There are only 5304 of this item in stock.

or

If this is for a larger order, please contact us on 0161 794 1783 as we may be able to order this item for you.

Code: SSB113 View
Stainless Steel Coach Bolts - M8 x 40mm (Qty: 10)
Pack
2.17

Limited Stock

There are only 0 of this item in stock.

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Code: ZCB049 View
Zinc Plated Coach Bolts and Nuts - M12 x 160mm (Qty: 10)
Pack
5.35

Limited Stock

There are only 527 of this item in stock.

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If this is for a larger order, please contact us on 0161 794 1783 as we may be able to order this item for you.

Code: 1235CB View
Zinc Plated Coach Bolts and Nuts - M12 x 35mm (Qty: 50)
Pack
6.00

Limited Stock

There are only 2 of this item in stock.

or

If this is for a larger order, please contact us on 0161 794 1783 as we may be able to order this item for you.

Code: ZCB16100 View
Zinc Plated Coach Bolts and Nuts - M16 x 100mm (Qty: 10)
Pack
8.06

Limited Stock

There are only 103 of this item in stock.

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If this is for a larger order, please contact us on 0161 794 1783 as we may be able to order this item for you.

Code: 10220INCB View
Exterior Green Coach Bolts c/w Nuts and Washers - M10 x 220mm (Qty: 10)
Pack
12.26

Limited Stock

There are only 668 of this item in stock.

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Code: 12180CBG View
Timco HD Galvanised Coach Bolt & Nut - M12 x 180mm (Qty: 10)
Pack
9.32

Limited Stock

There are only 0 of this item in stock.

or

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Code: ZCB021 View
Zinc Plated Coach Bolts and Nuts - M8 x 150mm (Qty: 25)
Pack
4.19

Limited Stock

There are only 1105 of this item in stock.

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If this is for a larger order, please contact us on 0161 794 1783 as we may be able to order this item for you.

Code: ZCB027 View
Zinc Plated Coach Bolts and Nuts - M10 x 90mm (Qty: 25)
Pack
8.45

Limited Stock

There are only 731 of this item in stock.

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If this is for a larger order, please contact us on 0161 794 1783 as we may be able to order this item for you.

Code: ZCB015 View
Zinc Plated Coach Bolts and Nuts - M8 x 65mm (Qty: 50)
Pack
4.84

Limited Stock

There are only 160 of this item in stock.

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If this is for a larger order, please contact us on 0161 794 1783 as we may be able to order this item for you.

Code: ZCB020 View
Zinc Plated Coach Bolts and Nuts - M8 x 130mm (Qty: 50)
Pack
8.42

Limited Stock

There are only 503 of this item in stock.

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Code: ZCB029 View
Zinc Plated Coach Bolts and Nuts - M10 x 110mm (Qty: 25)
Pack
5.69

Limited Stock

There are only 1203 of this item in stock.

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If this is for a larger order, please contact us on 0161 794 1783 as we may be able to order this item for you.

Code: SSB103 View
Stainless Steel Coach Bolts - M6 x 25mm (Qty: 10)
Pack
0.98

Limited Stock

There are only 36 of this item in stock.

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Code: SSB334 View
Stainless Steel Coach Bolts - M12 x 220mm (Qty: 10)
Pack
26.68

Limited Stock

There are only 0 of this item in stock.

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Code: SSB333 View
Stainless Steel Coach Bolts - M12 x 200mm (Qty: 10)
Pack
21.45

Limited Stock

There are only 5 of this item in stock.

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If this is for a larger order, please contact us on 0161 794 1783 as we may be able to order this item for you.

Code: SSB331 View
Stainless Steel Coach Bolts - M12 x 180mm (Qty: 10)
Pack
24.40

Limited Stock

There are only 8 of this item in stock.

or

If this is for a larger order, please contact us on 0161 794 1783 as we may be able to order this item for you.

Code: ZCB024 View
Zinc Plated Coach Bolts and Nuts - M10 x 65mm (Qty: 50)
Pack
8.16

Limited Stock

There are only 173 of this item in stock.

or

If this is for a larger order, please contact us on 0161 794 1783 as we may be able to order this item for you.

Code: 10200CBG View
Timco HD Galvanised Coach Bolt & Nut - M10 x 200mm (Qty: 10)
Pack
7.38

Limited Stock

There are only 300 of this item in stock.

or

If this is for a larger order, please contact us on 0161 794 1783 as we may be able to order this item for you.

Code: GCB057 View
Galvanised Coach Bolts (Bolt Only) - M8 x 60mm (Qty: 10)
Pack
2.81

Limited Stock

There are only 10 of this item in stock.

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If this is for a larger order, please contact us on 0161 794 1783 as we may be able to order this item for you.

Code: ZCB039 View
Zinc Plated Coach Bolts and Nuts - M10 x 280mm (Qty: 10)
Pack
6.95

Limited Stock

There are only 428 of this item in stock.

or

If this is for a larger order, please contact us on 0161 794 1783 as we may be able to order this item for you.

Code: ZCB014 View
Zinc Plated Coach Bolts and Nuts - M8 x 50mm (Qty: 100)
Pack
8.07

Limited Stock

There are only 1817 of this item in stock.

or

If this is for a larger order, please contact us on 0161 794 1783 as we may be able to order this item for you.