M10 Coach Bolts Stainless Steel

M10 coach bolts, also called M10 carriage bolts, are a metric bolt with a thread diameter of 10mm. 

When choosing the right stainless steel M10 coach bolt (DIN 603) for a specific application, it is important to consider factors such as the required level of corrosion resistance, strength and load-bearing capacity. You should ensure that your 10mm coach bolt is compatible with the other components that will be used in the assembly by searching for the DIN numbers.

M10 Coach Bolt Dimensions

  • Thread Diameter: 10mm
  • Thread Pitch: 1.5mm
  • Head Diameter: 24.65mm (max)
  • Head Height: 5.38mm
  • Specification: DIN 603 

Stainless Steel M10 Coach Bolts

At Fixabolt, we supply a full range of 10mm coach bolts in stainless steel for various trade and DIY uses.

Stainless steel M10 coach bolts are a popular option due to their corrosion resistance and durability. They are commonly used in construction and automotive applications, as well as in outdoor environments where exposure to air moisture and other corrosive elements may be a concern.

10mm coach bolts can be fastened with an M10 nut, which can also be found on our website.

You can browse our full range of stainless steel coach bolts here.

Please Note: M10 coach bolts DIN 603 may come fully threaded or partially threaded depending on source of manufacture.

Not what you were looking for? Find the similarly-named M10 coach screws here. 

22 products


M10 Coach Bolts – Stainless Steel (DIN 603 Carriage Bolts) | Fixabolt®

Heavy-duty timber bolts with a clean, domed head.

Fixabolt® M10 coach bolts are rugged, reliable fixings designed for timber-to-timber or metal-to-wood connections where strength and a smooth finish are essential. Manufactured to DIN 603, these 10mm stainless steel bolts feature a rounded mushroom head and a square neck beneath, which locks into timber to prevent the bolt from turning during installation.

Ideal for structural and outdoor use, these bolts come fully threaded and ready for anything from deck framing to gate hinges and pergolas.

10mm Coach Bolt Product Specifications

  • Thread Diameter: M10 (10mm)
  • Lengths Available: 40mm to 300mm
  • Standard: DIN 603 - domed head with square anti-spin neck
  • Head Type: Coach (carriage) - no drive, smooth finish
  • A2 stainless steel (304) – ideal for general outdoor applications

Fixabolt® M10 coach bolts are commonly used in:

  • Timber framework and outdoor joinery
  • Decking, pergolas, fencing, and sheds
  • Fixing heavy-duty brackets, plates, or hinges
  • Securing garden structures or landscaping timbers
  • Playgrounds, outdoor furniture, and cladding

Simply pre-drill the hole, tap the bolt into place so the square neck grips the wood, then tighten the nut from the reverse side.

Why Choose Fixabolt®?

✔ Trusted DIN 603 standard bolts

✔ Stainless steel in A2 - built to last

✔ Fast, tracked UK shipping

✔ Bulk pricing available for trade and project quantities

✔ Consistently high-quality fixings from a trusted UK supplier

Fixings that hold. Finish that looks good. That’s Fixabolt®.