Originally Posted by Glowgeek

I have 7/16" C360 H02 brass, 5/16-32 plug tap and die on order. Should be here by week's end. I don't have a way to accurately synchronize/index the threads other than by trial and error, using an index mark on the tap. With a little luck I should be able to get them sync'd In a couple of tries and I do intend on short tapping the threads, a little more at a time, until the Timesert insertion tool swages the last couple of threads without excessive pressure.

The broken piece of insert I removed from the cylinder has a 32 thread pitch and the int/ext threads are not synchronized. My thread pitch gauge is barely visable once inserted into the insert bore but it appears to be 32.