IIRC from Vern's impromptu presentation to '817 users at Dayton, he
uses 3/8"-24 tpi construction pretty much throughout. So, you could
pick up a section of 3/8" aluminum round stock (at Lowe's/Home
Depot/etc.) and thread it yerself (or ask the folks at the hardware
store to do it). S/B around $5 for the aluminum stock.
