Radial Joint is what I just got, but it doesn't fit. I can get it to screw on about halfway down the pin before it gets harder.
Edit: any idea of what else it would be?
I've got the same problem. I just bought a Radial pin shaft from an AZB member. Doesn't fit, nor does a 3/8-10. The pin is about 1" long, and it appears to be 9 tpi
I don't know how to post pictures