Buy direct — from China

If Home Depot, or any of the other local “hardware” stores, carried this exact thing, it would cost about one dollar for two pieces. They have some very similar items that I would have been willing to use if I could have.

Package from China
Direct from China and 15% of the price.
Because they don’t have anything close enough I had to order direct from China, using eBay. It cost $6.76. For 100 pieces. There were a couple of U.S. source, but I would have needed to buy 5,000 and I really only needed one.

Can somebody please explain why it’s $1 for two at a local store and $6.76 for 100 from China?