Norton crankcase top front stud + nut + washers 1/4inch x 26tpi BSC x Whitworth, 1955+ model twins (if for Model 7 check the size first as this was part T2015 at 5/16 inch) Original part numbers: 19077 ; 067728 - crankcase top stud (front) (1/4inch) x 1 E3229 - nut for stud x 1 T2221 - washers x 1
