Girder fork spindle nut 1/2 inch, chamfered one side only, reduced hex, 26tpi ZP Original part number Norton part no: 9267; A2/182 -Front Fork Top or Bottom Spindle nut 1/2" AJS / Matchless part no: STD-1; 000001 - Front fork top or bottom spindle nut 1/2 26 TPI