Galvanised Cup Square Hex - M8 - 40mm

Galvanised Cup Square Hex (Coach Bolts) with Hex Nut

Heavy-duty coach bolts with a domed head and square neck,supplied with hex nut. Hot-dip galvanised for maximum corrosion protection,perfect for outdoor and structural applications.

Key Features

• Domed (cup) head with square neck prevents bolt rotation during tightening
• Supplied complete with matching hex nut
• Hot-dip galvanised coating for superior rust resistance
• Smooth head design creates a tamper-resistant finish
• Metric coarse thread for secure fastening

Typical Applications

• Outdoor timber construction,fencing,decking,gates
• Heavy-duty joinery and structural fixings
• General external applications where durability is essential

Specifications

• Grade: 4.6
• Material: Carbon steel
• Finish: Hot-dip galvanised
• Head/Drive: Cup (domed) head with square neck,tightened via supplied hex nut
• Thread: Metric coarse (fully or partially threaded depending on size)
• Sizes: Common diameters M6 - M12 with a range of lengths

Installation Tips

• Drill clearance hole in timber; drive the bolt so the square neck locks into the wood
• Tighten from the nut side,use washers where extra support is required