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Austinsevenfriends
Sump Plug thread - Printable Version

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RE: Sump Plug thread - Hedd_Jones - 10-05-2019

The boiler stays on my 1920 Fowler steam roller are 3/4, 15/16 and 1 inch. All 14TPI whit form. 14 TPI is common on a lot of the fixings. Thankfully 5/8 _ 14 is BSF (I think)

RE: Sump Plug thread - Belinni - 11-05-2019

Thank you everyone for your help on this, I didn’t know about Whitform threads.

RE: Sump Plug thread - Ian Williams - 11-05-2019

Tracy tools are a good source of Whitform taps and dies.

RE: Sump Plug thread - Belinni - 11-05-2019

Yes I’ve been looking at those, quite reasonable too