M16 x 120mm Hot Dip Galvanised Cup Head Bolts & Nuts

M16 x 120mm Hot Dip Galvanised Cup Head Bolts & Nuts are engineered for strong, long-lasting timber connections in outdoor and structural applications. The 16mm thick shaft and 120mm length provide deep penetration and exceptional holding power, ideal for securing large posts, beams, and heavy timber frames. Finished with a hot-dip galvanised coating, these bolts resist rust and corrosion even in coastal or wet environments. The cup head ensures a smooth, tamper-resistant finish for a clean and professional look.