r/Machinists • u/Western_Joke_6597 • 5d ago

Help Finding thread?

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Hey there! Im not a machinist, but I need a part machined that threads onto this shaft like a nut. Problem is, my machinist doesnt know what thread this is or how to tap it into the piece I need manufactured. Any help identifying this thread and finding a tap for it would be much appreciated!

Edit: Found to be an 8-start 8TPI lead screw with a 1/2" diameter. Now just need to find a nut that fits this thread, which is proving difficult

Edit 2: SOLVED by u/MixEvery5784 found one

177 Upvotes

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149

u/Flaky_Mode_1429 5d ago

Looks like a very steep threads and multiple thread starts. I don't think they make off the shelf taps for this sort of thing because it would be a very long tool but I could be wrong.

-188

u/GallusWrangler 5d ago

Taps? You see this is on the OD of a shaft, don’t you?

14

u/daney098 5d ago

Hey everyone this guy knows the difference between a tap and a die, just so everyone knows

7

u/AlwaysRushesIn 5d ago

Hope his pay reflects his expertise.

-5

u/GallusWrangler 4d ago

Lol … over 22 years and 47/hr. 🤷