Bolt / stud, nut, washers for crankcase bottom to frame for Nortons with brazed cradle frame to 1956 OR used on open frames (16H, Model 18, Big 4) with sump guard fitted (each), ZP. listed as a bolt but replaced by a stud early on. Original part number: 3030; E4262 - engine cradle bolt (stud) E3223 - engine cradle bolt nut washer x 2 not listed in parts book
