[Synchro909]

Originally Posted by Y-Blockhead

Awesome. Thanks Synchro. I'll order one up. I don't think the local Ace will have that size.

Looking at McMaster-Carr prices, I was hoping it was a 5/16-32 as opposed to a 5/16-28 (or another odd size). They want $8.07 for a 5/32 bottoming tap compared to $23.81 for a 27, 28 or 40!

No worries, Y.
32 tpi is probably cheaper exactly because it is so widely used on valve stems.