Their site won't provide shipping prices, but its reasonable, and if you call they'll estimate it. My favorite thing about them is they were founded by a stationary engineer (think a ship or train engineer but stationary, such as: big buildings/campuses) over a hundred years ago. I'm a working stationary engineer myself.
They now provide shipping costs, at least in the Los Angeles area.
Much of the shipping work is done by private contractors like DGC. I get same day deliveries, often for $7-10.
Was looking for strong lag screws for wood. Like most places, McMaster-Carr has only regular steel for lag screws, but they have Grade 8 lag bolts. Eventually found Grade 5 lag screws from SPAX, https://spax.us/resources/blog/spax-powerlags-vs-conventiona...