Made by otherselves.

5/8 x 20TPI Cycle Thread with a smaller 9/16 BS Hex. 5/16" Thick.

This has a later size cycle thread and will not fit the early version.

Finished off with zinc plating and a clear passivation

 

 

 

 

BSA B44 B25 Timing Side Crank Nut 20TPI 37-1798 PES

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