[trey-jones]

McMaster-Carr out-Amazons Amazon when it comes to specialty items that you can't find online anywhere else. For a lot of product categories they have every conceivable variation that you might need. Specifically in the past I've used them for electric relays. I don't know of a brick and mortar locally that has the selection that I want, and you won't find these on Amazon. Next stop? McMaster.com.

One thing that annoyed me recently:

They don't take Discover. This led to me attempting to pay with an old Visa debit card which appeared to be accepted at checkout. In fact, they even shipped my order, and then sent me an email about my card being declined. It was a small order, but it still surprised me that they shipped without confirming payment. So I have an outstanding invoice. Not a huge deal, and as others have mentioned they do actually answer the phone, and you can talk to a human being about whatever customer service issue you might have.

[roflyear]

This is a good thing IMO often you need a part right away. McMaster sends before they worry about you paying for it. They are a really solid company. I order from them whenever I can.