M16 x 150mm Hot Dip Galvanised Cup Head Bolts & Nuts

M16 x 150mm Hot Dip Galvanised Cup Head Bolts & Nuts are the go-to choice for serious structural timber work. With a strong 16mm diameter and extended 150mm length, these bolts offer powerful fastening for thick beams, posts, and outdoor timber structures. The hot-dip galvanised coating provides superior protection against rust and corrosion, even in harsh or coastal environments. A rounded cup head ensures a flush, tamper-resistant finish, making them ideal for decks, retaining walls, pergolas, and other heavy-duty applications.