02-07-2023, 08:30 PM
(This post was last modified: 02-07-2023, 08:32 PM by Stuart Giles.
Edit Reason: punctuation
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Most pre-war British Standard nuts were the same height as the nominal diameter -e.g. 3/16" BSF nut would be 3/16 tall etc. Also, Most pre war nuts were 'bar turned' i.e. they were made from hexagonal bar on a lathe; they usually have a chamfer on one side only. Modern nuts are produced in a stamping process; which is why they have a chamfer on both sides. WRT alternatives, 10-32 UNF is a lot closer to 3/16" BSF than 2BA.