Starter dog thread

[Bill Sheehan]

Tony - only if you Dressed them with oil before installing?   Cheers,  Bill in Oz

[Bob Culver]

I appreciate the uniform joke, but to be pedantic...
Unified can now be considered the American standard, but the previous American National thread, esp early version, differed from Unified form although both 60 deg. 

The Cycle threads as on original spokes are 60 deg but yet another form.

[Colin Wilks]

For the sake of completeness, the subject of oddball sizes / Admiralty threads was discussed on the old forum:

http://pub25.bravenet.com/forum/static/s...1&cmd=show

The taps and dies for 5/8" x 16 tpi are listed on the Tracy Tools site:

https://www.tracytools.com/taps-and-dies...ct_id=1108