I am searching for 3/4"-10, RH hex nuts (steel) for a repair project. Jam nuts would be perfect. It's an uncommon size but I am stuck with it as this is a retro-fit/repair on an older, very large piece of American, mechanized antiquity.

(nuts)

I purchased the odd size acme threaded rod from Mc Master but they do not have the nuts. My searches have been fruitless.

Does anyone have any ideas where I can get such an item?

Does anyone have a tap and a few minutes to make me some collars or jam nuts?

I need 4. Willing to pay. Must have. Getting desperate.

Thanks in advance, guys.

Scott

Enco has them: http://www.use-enco.com/CGI/INSRIT?PARTPG=INSRAR2&PMAKA=319-9359&PMPXNO=19512727

jgro

Did not even look there (duh) and Enco did not show up in my search. Wonder why not?

It looks like the case is solved - parts ordered.

I just hope they are in fact ACME - I went back to the site and searched for ACME and they showed up again, so I guess they are ACME and not UNC.

Thanks for the source!

Scott

Update -

The cat page said ACME, the part number indicates ACME thread but the nuts I received are UNC. Shoulda known.

Since I have them, and since the application is not critical I am planning to machine a little off the shaft and a little out of the nut to make them fit in a small region of the screw. Close enough for the application - it is simply to retain a pinion gear in place laterally.

Scott

Try MATT SINCLAIR (86+!), Coburg, Melbourne, 613 9354 2588.
Don't think he is on the web. Nice bloke. He makes all sizes and acme screws up to 4 meters long.