M12 x 300mm Hot Dip Galvanised Hex Head Bolts & Nuts

Secure, long-lasting connections for large timber frames and outdoor builds. These M12 x 300mm bolts pair with galvanised nuts to form a rugged, weather-resistant fastening solution that stands up to coastal exposures and high-moisture environments.

Hot dip galvanised coating delivers robust corrosion resistance, ensuring reliable performance in demanding outdoor settings. The extended 300mm length provides a strong bite through thick timber and substantial structural elements for deeper joints.

Key features

• Coarse M12 diameter with a generous 300mm length for deep timber joints
• Hot dip galvanised coating for long-lasting protection against corrosion
• Includes matching galvanised hex nut for a complete fastening solution
• Designed for large structural builds and outdoor use

Shipping options available. In‑store pickup available — contact us for pickup location & hours.