On Fri, 7 Aug 2009 22:39:51 -0700 (PDT), "
wrote:

I need to get some 1/2" and 5/8" steel balls. They don't have to be
super high quality, but I do want them to be relatively inexpensive.
I need to get 50-100 of them.

Can a help with a source?

McMaster-Carr

Unhardened, non-precision:

96455K56
Low-Carbon Steel Ball 1/2" Diameter, Grade 1000
In stock at $7.94 per Pack
This product is sold in Packs of 100

Hardened, bearing quality:

9528K24
E52100 Alloy Steel Ball 1/2" Diameter, Grade 25
In stock at $14.01 per Pack
This product is sold in Packs of 100

--
Ned Simmons