Bench Vise Restore

[Tom Gauthier]

Hello all.
I inherited this under-bench vise which I will be restoring. Jaws are 10" wide and it opens about 11". There is no name, but it does say "Made in USA" with the number 2433 stamped in the jaw.
My problem is that the rear nut for the vice screw is missing. The screw is single-lead Acme thread, 7/8-4 (0.25" pitch). The pocket for the nut is 2" x 2" x 5/8" thick.
Any ideas on where to get a replacement nut?
Thanks for your help.
-Tom

 

[Jim DeLaney]

Are you sure the lead screw is 4 TPI? the standard 7/8" Acme screw pitch is 6 TPI, which McMaster-Carr carries in several lengths, and the nut is 1½" square.

McMaster-Carr

McMaster-Carr is the complete source for your plant with over 595,000 products. 98% of products ordered ship from stock and deliver same or next day.

www.mcmaster.com

 

[Tom Gauthier]

I double checked because I was finding the same thing you did. The diameter is 0.875 and the pitch is 0.25.

 

[Tom Gauthier]

Sorry, the photos aren't very clear.

 

[Thomas Carroll]

Hello all.
I inherited this under-bench vise which I will be restoring. Jaws are 10" wide and it opens about 11". There is no name, but it does say "Made in USA" with the number 2433 stamped in the jaw.
My problem is that the rear nut for the vice screw is missing. The screw is single-lead Acme thread, 7/8-4 (0.25" pitch). The pocket for the nut is 2" x 2" x 5/8" thick.
Any ideas on where to get a replacement nut?
Thanks for your help.
-Tom

Hi,
Just came into this thread, and although a lot of time has passed, perhaps this can help... here's a picture of the original nut on a vise l just got, and was trying to Identify.

 

[Ted Calver]

Welcome aboard Thomas, and thanks for the photo. The OP hasn't been around since 2021 but maybe he will check back in.

 

[Jonathan Shively]

As Ted said, "welcome aboard!". You will get along here quite well with a first post helping someone and a picture to boot!!! Stick around and create a thread telling us about yourself.

 

[Jay Caughron]

Welcome Thomas