Hello nhbenz. Bradenton is about 100-MI from where this item was dug...you're right I can't see what they do there though.
Using your "manufacturing" wording, I do find a Kee lawn mower company and a Kee convertible car top company on the net...maybe it's a component from one of them.
"Kee Klamps" are used for a huge variety of applications such as railings, scaffolding, and such.
The appearance of a set screw hole on this, suggests you might have a fitting from this company ?