Types of Nuts 'Griptite', Double Chamfer Full, Single Chamfer Full, Double Chamfer Lock (thin), Single Chamfer Lock (thin),Deep Nut (1.5 x daimeter depth), Nyloc (types P & T), Dome, Wing, Reduced Hexagon (hexagon reduced by 1 size) Thread Forms BA (British Association),BSCycle (British Cycle), BSF (British Standard Fine), BSW (British Standard Whitworth), UNC (Unified National Coarse), UNF (Unified National Fine)