A domed head bolt with a square anti spin shoulder mainly used for clamping timber or attaching ironmongery to timber. Manufactured from A2 Stainless Steel offering superior corrosion resistance, perfect for external applications. Stainless steel must be used where there is corrosive environment and/or the base material has inherent corrosive characteristics e.g. Green Oak. NOTE: Nuts included. Fully threaded up to and including 150mm, partially.