Pin type
- Thread starter CDs cues
- Start date
dave sutton
Banned
3-8-8 possibly. Count thread per inch
Maybe 3/8-10 Acme
What happens if you tap a piece of delrin or another piece of wood for that matter and try to spin that pin up into it?? Looks like it is a pin with a flat major on the thread. When you put the 3/8-10 drive set in it is it loose or tight? if it is loose use the 3/8-10 undersized tap if it is tight drill the hole bigger.. Wait are you making a shaft or what??CDs cues said:
Maybe that's metric or one of those with .308 minor.
Not .3125.
Not .3125.
Just curious, y'all do know square versus round Right? In reading some of the above, I don't think some actually know.
Michael Webb said:
I don't think those threads are round. It looks like a pin made by hand. The round look is only an illusion at glance, but close looking & you'll see the v-bottom. Looks like the minor was not cut quite deep enough, and the major was sanded, which gives a round look. They are v-grooves, just odd sized. But who knows without actually physically inspecting the pin????
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Yes I know, sometimes I'm a smart ass but don't really mean to be, The 3/8X10 acme is actually ordered in a two piece tap set unless you have a thread mill, from the past and the Cue makers who have used it, It is a pain in the butt. I have three taps for this but it doesn't do you any good. Sometimes I should just give a helpful answer instead of reading the threads. Lee, your view was dead on.
What exactly makes it an acme thread? Is it the flat crest and root? Or is it the fact that the inc. angle is only 30 degrees. I always went by the angle on the thread. You have to sharpen your cutter to 15 degrees to make an acme thread. Modified acme will still have a 30 degree angle. The crest and root will change. Standard v thread is 60 degree included. Modified would be a flat Crest or root. This is how I was taught right or wrong.