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    • Coach Bolts (Cup Square)

    We supply coach bolts, also known as cup square bolts or carriage bolts, in metric sizes from M5 to M12. Available in zinc plated steel, A2 stainless steel and brass, these bolts are widely used in timber construction, fencing and general assembly applications.

    The domed head and square neck design prevents rotation during installation, making coach bolts ideal for fastening wood and structural components. Bulk quantities available with fast UK delivery.

    Browse related categories: Nuts, Washers and Bolts & Set Screws.

    • M8 Brass Coach Bolts

      M8 Brass Coach Bolts

      Metric Standard thread M8 X 1.25 PITCH DIN603 SOLID BRASS Length measured from under the head Head diameter - 20mm

      £2.22 (Inc. VAT)
      £1.85 (Ex. VAT)
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    • M6 Brass Coach Bolts

      M6 Brass Coach Bolts

      Metric Standard thread M6 X 1 PITCH DIN603 SOLID BRASS Length measured from under the head Head diameter - 16mm

      £1.32 (Inc. VAT)
      £1.10 (Ex. VAT)
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    • M5 Brass Coach Bolts

      M5 Brass Coach Bolts

      Metric Standard thread M5 X 0.8 PITCH DIN603 SOLID BRASS Length measured from under the head Head diameter - 13.55mm

      £1.12 (Inc. VAT)
      £0.93 (Ex. VAT)
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    • M6 Zinc Coach Bolts & Nuts | DIN 603 ISO 8677 M6 Zinc Coach Bolts & Nuts | DIN 603 ISO 8677

      M6 Zinc Coach Bolts & Nuts | DIN 603 ISO 8677

      M6 × 1.0 Grade 4.8 Zinc-Plated Steel Coach Bolts with Nuts These M6 coach bolts, also known as carriage bolts or cup-square bolts, have a smooth domed head and a square neck beneath the head. The...

      £0.24 (Inc. VAT)
      £0.20 (Ex. VAT)
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    • M12 Zinc Coach Bolts & Nuts | DIN 603 ISO 8677 M12 Zinc Coach Bolts & Nuts | DIN 603 ISO 8677

      M12 Zinc Coach Bolts & Nuts | DIN 603 ISO 8677

      M12 × 1.75 Grade 4.8 Zinc-Plated Steel Coach Bolts with Nuts These M12 coach bolts, also known as carriage bolts or cup-square bolts, have a smooth domed head and a square neck beneath the head. The...

      £1.55 (Inc. VAT)
      £1.29 (Ex. VAT)
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    • M8 Zinc Coach Bolts & Nuts | DIN 603 ISO 8677 M8 Zinc Coach Bolts & Nuts | DIN 603 ISO 8677

      M8 Zinc Coach Bolts & Nuts | DIN 603 ISO 8677

      M8 × 1.25 Grade 4.8 Zinc-Plated Steel Coach Bolts with Nuts These M8 coach bolts, also known as carriage bolts or cup-square bolts, have a smooth domed head and a square neck beneath the head. The...

      £0.37 (Inc. VAT)
      £0.31 (Ex. VAT)
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    • M10 A2 Stainless Coach Bolts DIN 603

      M10 A2 Stainless Coach Bolts DIN 603

      M10 A2 Stainless Steel Mushroom Head Coach Bolts – DIN 603 These M10 coach bolts are manufactured from A2 austenitic stainless steel and feature a shallow mushroom head with a square neck beneath it...

      £0.96 (Inc. VAT)
      £0.80 (Ex. VAT)
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    • M12 A2 Stainless Steel Coach Bolts DIN 603

      M12 A2 Stainless Steel Coach Bolts DIN 603

      M12 A2 stainless steel mushroom head coach bolts manufactured to DIN 603, with a square neck and standard 1.75mm metric coarse thread. These coach bolts feature a smooth domed head with a square...

      £0.96 (Inc. VAT)
      £0.80 (Ex. VAT)
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    • M8 A2 Stainless Steel Coach Bolts DIN 603

      M8 A2 Stainless Steel Coach Bolts DIN 603

      M8 A2 stainless steel mushroom head coach bolts manufactured to DIN 603 with a square neck and standard 1.25mm metric coarse thread. These coach bolts feature a smooth domed head with a square...

      £0.36 (Inc. VAT)
      £0.30 (Ex. VAT)
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    • M10 Zinc Plated Coach Bolts With Nuts DIN 603 M10 Zinc Plated Coach Bolts With Nuts DIN 603

      M10 Zinc Plated Coach Bolts With Nuts DIN 603

      M10 metric 4.8 grade zinc plated coach bolts supplied with matching plain nuts. These cup square coach bolts have a domed head with a square neck under the head, designed to help prevent the bolt...

      £0.96 (Inc. VAT)
      £0.80 (Ex. VAT)
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    • M5 A2 Stainless Coach Bolts DIN 603

      M5 A2 Stainless Coach Bolts DIN 603

      M5 metric A2 stainless steel cup square carriage coach bolts, manufactured to DIN 603. These coach bolts are made from A2 stainless steel, giving good corrosion resistance for general indoor, outdoor...

      £0.86 (Inc. VAT)
      £0.72 (Ex. VAT)
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