Re: 1/4-20 thread?

From: Ray Brandes (
Date: Tue Mar 23 1999 - 17:49:21 EET

I assume it is a 60deg V thread, but is it male or female? What class?
Make the male body .25" diameter to the theoretical sharp point then
remove .001 to .002 from the diameter.
Make the female the same .25" to the theoretical sharp but add .001 to
.002 to this.
Does it have to fit an existing part? Can you make it heavy and then run
a tap or die on it?

Doug Bucci wrote:

> Hello, I need to create a 1/4-20 thread in SLS can anyone provide me
> with the minimum tolerances for creating this? Thank you,Douglas Bucci

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