M12 x 180mm Hot Dip Galvanised Cup Head Bolts & Nuts

Secure, heavy-duty timber connections with maximum holding strength. These M12 x 180mm hot dip galvanised cup head bolts and nuts are built for thick posts, beams, and large timber structures, delivering a reliable anchor for decks, fencing, pergolas, and outdoor frameworks.

The extended 180mm length and 12mm diameter provide robust performance in demanding outdoor settings. The hot-dip galvanised coating offers excellent rust protection in coastal and high-moisture environments, helping components endure the elements over time. With a rounded cup head, the fasteners deliver a smooth, secure finish for a clean, professional look on your timber projects.

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