Joe -

McMaster is Da Best. Pricey - but have anything and
everything you'd ever want. A huge warehouse is right
in Dayton (exit 8a off Tpk) - you can do a pick up and
avoid shipping charges.

For dirt cheap stuff pay a visit to Fazzios (South Jersey,
google them for exact location).

Another thing that's nice to know: HarborFreight has a
store somewhere close to where you live.