Steel Coach Bolts M5–M8 (30–100 mm)

Complete timber fixing sets with nuts & washers included

Build solid, tidy wood-to-wood joints with these DIN603 coach bolts. The low-dome head presents a neat face, while the square neck under the head bites into the timber to prevent spin during tightening. Supplied complete with hex nuts and flat washers, they’re a dependable choice for gates, pergolas, canopies and frames where a clean finish and reliable clamping matter.

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Product Information

• Material: Steel

• Finish: Steel

• Size/Dimensions: M5–M8 diameters; 30–100 mm lengths

  • Examples: M5 × 30 mm (thread ≈ 16 mm; head Ø 13.5 mm); M6 × 50 mm (thread ≈ 18 mm; head Ø 16.5 mm); M8 × 80 mm (thread ≈ 22 mm; head Ø 20.6 mm)

• Fixing/Mounting: Low-dome head with square neck (anti-rotation) + hex nut & washer

• Variants/Colours: M5, M6, M8; lengths 30–100 mm

• Use: Timber construction—gates, pergolas, sheds, overhangs/canopies

• Standards: DIN603

• Packaging: Blister (5 pcs) or tub (25 pcs)

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Product Features

• Square neck locks into wood to stop the bolt turning as you tighten

• Low-dome head gives a clean, snag-resistant appearance on show faces

• Complete sets with nut and washer for ready-to-use installations

• Broad size range (M5–M8, 30–100 mm) for flexible detailing on site

• Consistent threads and lengths for predictable clamping in timber joints

• Choice of 5-pack or 25-pack to suit small fixes or larger builds

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Suitable For

• Garden gates, doors and frames

• Pergolas, canopies and carports

• Sheds, planters and general timber framing

• Furniture and joinery where a neat, domed head is preferred

Installation Tips

• Drill a clearance hole for the bolt shank; seat the square neck fully before tightening.

• Fit the washer under the nut to spread load and protect the timber face.

• Select a length that allows washer + nut with a few threads protruding.

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A simple, work-ready fixing with a clean finish—small parts that help timber projects feel strong, ordered and considered.

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