08-01-2018, 11:14 PM
David's and Bob's concerns about the nuts not being BSF appear to be plausible.
As an aside (sorry) I wondered if BSF head sizes were ever different from the head sizes of the corresponding BSW fasteners.
I have seen many spanners marked BSF when I would have thought that BSW or BS would have been the correct designation.
As an aside (sorry) I wondered if BSF head sizes were ever different from the head sizes of the corresponding BSW fasteners.
I have seen many spanners marked BSF when I would have thought that BSW or BS would have been the correct designation.