RockJock's custom, small hex 1 inch-14 RH thread Jam Nut features a smaller hex size than standard Jam Nuts, allowing it to tuck into tighter places in brackets, etc. This nut is a 1 3/8 inch wrench size, as opposed to a 1 1/2 inch wrench size of a standard 1 inch thread Jam Nut. Nut is finished in gold zinc plating.