Man, I was sick and tired of trying to find 5/16ths diameter bass legs for early sixties Slingerland bass drums.
I found a company..... Allmetalsincorporated that sells stainless round bars in various diameters, lengths, and grades.
I ordered two in 5/16ths diameter, 14 inches long in the 304 grade.
They have another grade... 303, but 5/16ths isn't offered in that grade.
Anyway, they arrived yesterday, and they look just fine.
The website is a little tricky when it comes to configuring the sizes, but doable, even for me.....lol !!
The total cost including shipping was $16.96
Probably someone has beat me to the punch on this, but it's new to me and thought I would share.