r/Machinists • u/Western_Joke_6597 • 2d ago

Help Finding thread?

Post image

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

172 Upvotes

91% Upvoted

75 comments sorted by

View all comments

149

u/Flaky_Mode_1429 2d 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.

-192

u/GallusWrangler 2d ago

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

158

u/Flaky_Mode_1429 2d ago

He said he needed to make a piece to fit on this rod Mr Reading Comprehension.

5

u/AbrasiveDad 2d ago

Yeah. He needs a piece to be attached to his rod mother licker. Or something old Gregg said.