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M32 X .75 threads

Printed From: CAD Forum
Category: EN
Forum Name: CAD - general
Forum Description: General discussion about CAD, formats, standards, management, licensing, networking, harware, other CAD applications
URL: https://www.cadforum.cz/forum_en/forum_posts.asp?TID=12585
Printed Date: 17.May.2026 at 06:31


Topic: M32 X .75 threads
Posted By: BrianPfeifer
Subject: M32 X .75 threads
Date Posted: 03.Jan.2018 at 22:23
Trying to cut M32 x .75 threads internal and external (mating pieces) in Aluminum. having no success.
Using G92 threading cycle (please don't ask me to switch to G76)

For the external i cut my stock to my External major Dia but after threading the diameter grows upwards of .020. I expect a little growth but this is excessive. I know my pitch is right, but now i'm questioning my major and minor diameters that i found using an online calculator because this is a custom thread.
Max major Dia = 1.2589
Min Major Dia = 1.2534
Max pitch Dia = 1.2398
Min Pitch Dia = 1.2353

Anyone got any suggestions? I need help.



-------------
Brian Pfeifer



Replies:
Posted By: philippe JOSEPH
Date Posted: 04.Jan.2018 at 08:07
Hello Brian, I have uploaded a file in the CAD / BIM Library : SCREW H M 16 x 35.dwg with inside the example for diameter M 32 x 0.75.
All this is in accordance with what you can find at WIKIPEDIA ISO metric screw thread
Please tell us if this helped or not.


Posted By: philippe JOSEPH
Date Posted: 05.Jan.2018 at 08:25
Hello Brian, I joint this picture because I don't know if you have AutoCAD.



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