UchidaDS
Mechanical
- Sep 28, 2011
- 116
I notice that if using the "standard" GH3 to tap a plastic, the result is too tight to screw in a plastic bolt.
Is there a rule of thumbs or reference about what tolerance or callout should I made for this thread (eg. 3/4-10 UNC) such that I could turn the nut freely and not loosing too much strength?
So far I have to reduce the bolt pitch diameter for about .015".
Is there a rule of thumbs or reference about what tolerance or callout should I made for this thread (eg. 3/4-10 UNC) such that I could turn the nut freely and not loosing too much strength?
So far I have to reduce the bolt pitch diameter for about .015".