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Austinsevenfriends
Rist Horn Threads - Printable Version

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RE: Rist Horn Threads - Chris KC - 24-05-2018

Knew I shouldn't have thrown out my Meccano!

Thank you all for your assistance.

RE: Rist Horn Threads - Ken Morton - 24-05-2018

5/32 by 32 on mine too

RE: Rist Horn Threads - Chris KC - 24-05-2018

(24-05-2018, 08:49 PM)Ken Morton Wrote: 5/32 by 32 on mine too

Thanks Ken

RE: Rist Horn Threads - David.H - 25-05-2018

(24-05-2018, 08:50 PM)Chris KC Wrote:
(24-05-2018, 08:49 PM)Ken Morton Wrote: 5/32 by 32 on mine too

Thanks Ken
5/32 BSW and 3/16BSF are almost identical. Same TPI, same pitch, same thread angle (55degrees)
Thread depth & radius are different ,so if tapping a hole you need a 0.12" hole (#31 drill or 3.1mm) for BSW.
For 3/16BSF a 0.1562 hole (5/32" or3.9mm drill)