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BSF Bolts failing when tightening
#20
(09-01-2018, 09:12 PM)Ritchie Wilson Wrote: Yes thanks Roger, that's what I was getting at. 
So when whitworth head sizes changed in 1940 to the BSW sizes, BSF remained unchanged. 
I can hear my old teachers: "You fool Wilson!"

BSW head sizes changed in 1940 to the BSF sizes, BSF remained unchanged.

Cheers, Tony
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Messages In This Thread
RE: BSF Bolts failing when tightening - by nrzam - 07-01-2018, 12:20 PM
RE: BSF Bolts failing when tightening - by Tony Press - 09-01-2018, 10:33 PM

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