Super company I've been using them since before smartphones when their website was THE place to go to search for my nuts, screws, bolts needs. Incredible detailed drawings so you knew what you were purchasing. And now via smartphone they shined again with one day delivery with regular ground price.

Great Customer Service I buy alot of stuff from McMaster Carr with me being a maintenance manager. Almost everything I order is delivered by the next morning. I have always received quality items. Today I received one wrong item in my order. When I emailed their customer service I received a reply within 10 minutes. I was told to keep the wrong item and they would ship the correct item for the next morning delivery. Anyone else would've wanted pictures of the wrong item in the package and days if not weeks of time before a reply.

Completely ridiculous shipping rules Completely ridiculous shipping rules. I placed an order online to be shipped to my customer location (that I have shipped to previously). Received a confirmation email and then was subsequently contacted by a rep stating they intercepted my order so UPS could return it as they could not ship to a third party. If I'm paying by credit card, why do they care who I'm shipping my items to?? It mentions nothing about this "rule" on their website.

To whom it may concern To whom it may concern : Will call team member Tommy Ortega is the most processional / talented / nicest person at this McMaster Carr location , he’s all over the place very Knowledgeable, respectful among other things that I Might be missing out , I’ve been coming here for over a year and not once he’s made a mistake or left any thing out from all the orders that we have placed . Thumbs 👍🏽 up and keep up the good work Tommy !!! Sincerely : A very happy customer 🙂🙂🙂🙂

McMaster-Carr is fantastic! I've been using McMaster-Carr for years. They always have the bolts and other hardware that no one else has. They also have very good pdfs with dimensions as well as CAD renderings. These are very important when your building prototypes and trying to figure out what may or may not work on a one off project. The best part is you get them either the next day or the following. Highly recommend!