Bottom front crankcase stud and nuts, originally listed as a bolt. Suit Nortons 1933 to 1937. Post 1937 the bolt was replaced by a stud with a nut on LH side. Original part number: 3032; 11779 - Crankcase bottom front stud, 3/8in x 2-7/8in - bottom front crankcase stud washer x 2 E3224 - bottom front crankcase stud nut x 2