Nuts, cylinder head barrel nuts, Norton early twins (set)

Cylinder head and barrel front nut (sleeve nut x 2 + cylinder head and barrel rear nut for Norton twins pre 750. Front stud nuts have 1/2 in AF hex, as it is easier to obtain or make a reduced 1/2 inch adaptor than grind down a good BSF one. The rear nut is 3/8 BSF.
Original parts numbers:
D12/979; E3224; NME3224  - Cylinder head and barrel stud nut rear  x 1
D12/978; T2034; NMT2034; 24260; NM24260; 06-3192; 063192 - Cylinder head and barrel stud nut front x 2
D12/974; E5376; NME5376; 602322; 602322; NME5455 - Cylinder head and barrel stud nut washer x 3