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M20 Cup Head Bolts Gal
Description
M20 Galvanised Cup Head Square Neck Bolt – Heavy-Duty Coach Bolt for Timber and Structural Fixing
The M20 Galvanised Cup Head Square Neck Bolt is a strong, reliable fastener designed for secure timber-to-timber or timber-to-metal connections. Commonly known as a coach bolt, it features a smooth domed head and a square neck beneath that locks into timber to prevent rotation during tightening.
Manufactured from high-tensile steel and hot-dip galvanised for superior corrosion protection, this bolt is ideal for outdoor and structural applications such as decks, fences, pergolas, retaining walls, and landscaping projects. When used with a nut and washer, it provides a secure, long-lasting fastening solution in both residential and commercial construction.
Key Features:
Domed Cup Head with Square Neck: Prevents bolt spin when tightening
Hot-Dip Galvanised Finish: Excellent rust and corrosion resistance for outdoor use
High-Strength Steel Construction: Built to handle heavy loads and tough environments
Designed for Use with Nuts and Washers: Provides secure and stable fastening
Compliant with Australian/NZ building standards
Typical Applications:
Timber framing and joinery
Decking, fencing, and pergolas
Retaining walls and landscaping
General construction and structural fixing
Outdoor timber and structural steel connections
