
The Zenith M16 x 150mm hot dip galvanised cup head bolt and nut is a heavy-gauge 4.6 grade steel fixing for outdoor construction. The hot dip galvanised coating shields the bolt and nut from rust, so it suits fences, gates and other exposed timber work.
The low-profile cup head sits flush for a tidy finish, while the square neck beneath the head grips timber so the bolt does not spin as the nut is tightened. The coarse thread delivers strong grip for fastening timber to timber, metal to timber or metal to metal.
The Zenith M16 x 150mm Hot Dip Galvanised Cup Head Bolt and Nut is a general purpose construction fixing in 4.6 grade steel, providing a reliable fastening solution for timber and metal.
Suitable for fastening timber to timber, metal to timber, or metal to metal.
It is an M16 thread with a 150mm shank length, supplied with a matching M16 hex nut.
It is 4.6 grade steel with a hot dipped galvanised finish for corrosion resistance.
Hot dip galvanising dips the steel in molten zinc to create a rust-resistant coating, which is why these bolts suit outdoor use.
The square neck beneath the cup head grips timber so the bolt does not spin while you tighten the nut.
Yes, a matching hex nut is supplied with each bolt.



