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LYO

These will no doubt come in handy some day. Thanks for posting!

Good info!!

(Substitute the word "pitches" for the word "threadings". )

LYO

MarkELynch wrote: Sat Jun 26, 2021 5:45 pm Hi Jerry,
I hope these tables prove useful at some point in our repair lives.

Sorry, I don’t agree with your word substitution.
Threads per Inch (threading) and Pitch are not interchangeable terms although they are sometimes used this way.

Pitch is actually the distance between one root and the next root (or crest to crest).
Threading (TPI) is how many crests per unit measure. (Inches)

So, pitch is actually the reciprocal of Threads per inch.
The pitch of 20TPI is 1”/20 threads or 0.050”, an unconventional way to refer to UNx threads.
Metric threads use the pitch measurement as in 5 x 0.80M

Mark

We should let Starrett know about that...
While you are technically correct, if I were to have used the word "threadings" at any time in my 35 years of manufacturing, I would have been laughed out of the shop.

JerryVan wrote: Sun Jun 27, 2021 12:48 pm
We should let Starrett know about that...

Let them know they left the U out of gauge too

MarkELynch wrote: Sat Jun 26, 2021 5:45 pmLYO

Mark,

I have no idea what LYO means, but I assume I've offended you. I am truly sorry if that's the case. It was not my intention. Don't punish the rest of us by deleting your helpful information just because I erred in my judgement.

I hate acronyms...

LYO Meanings:
LYO Large Yellow Orangatang LYO Lyondell Chemical Company Nyse symbols ***** LYO Loving Yourself and Others *** LYO lyophilized * LYO Lubavitch Youth Organization * LYO Lyondell Chemical Co. * LYO Lift Your Own * LYO Lyons-rice County Muni Airport * LYO Lutheran Youth Organization * LYO Light Yellow Orange * LYO Lyons-Rice County Municipal Airport, Lyons, Kansas, United States Iata Airport Codes United States Kansas * LYO Leeds Youth Opera * LYO Luton Youth Orchestra * LYO Littleton Youth Orchestra * LYO Louisville Youth Orchestra * LYO Limpopo Youth Orchestra

Read more at http://acronymsandslang.com/LYO-meaning.html

Note to Mark: this is no place for snowflakes or other easily offended people - grow up and quit pouting...

Thread Pitch Charts:
https://www.portlandbolt.com/technical/ ... tch-chart/
http://www.mtfca.com/discus/messages/50 ... 1217037499
https://d2t1xqejof9utc.cloudfront.net/f ... 1528751554

JerryVan wrote: Tue Jun 29, 2021 3:52 pm

MarkELynch wrote: Sat Jun 26, 2021 5:45 pmLYO

Mark,
I have no idea what LYO means, but I assume I've offended you. I am truly sorry if that's the case. It was not my intention. Don't punish the rest of us by deleting your helpful information just because I erred in my judgement.

Nicely put, Jerry.
I'm sad to see Mark's contribution deleted, from what I could work out it looked as if it could be useful to the group.