McMaster-Carr is a comprehensive supplier of industrial products, catering primarily to businesses in the manufacturing, construction, and maintenance sectors. With a catalog exceeding 595,000 items, the company provides a vast selection of categories that include fasteners, plumbing supplies, electrical components, material handling equipment, and safety supplies. Their inventory is designed to meet the diverse needs of professionals seeking reliable parts and tools for various applications. Serving a wide range of industries, McMaster-Carr prides itself on efficient service, with 98% of products ordered shipping from stock and available for same or next-day delivery. Their user-friendly website ensures that customers can easily navigate through product categories such as heating and cooling, hand tools, and furniture storage, making it a go-to resource for those looking for quality industrial supplies.
McMaster-Carr receives a mix of praise and criticism from its customers. Many reviewers highlight the company's impressive selection of specialized hardware and parts, noting that they often find items that are hard to source elsewhere.
The fast shipping and attentive customer service are frequently mentioned as standout features, with some customers reporting next-day delivery and quick resolutions to issues. However, there are significant complaints regarding shipping costs and order cancellations, with some customers feeling devalued by the customer service experience. Issues such as unclear shipping quotes during checkout and high freight charges contribute to dissatisfaction. Overall, while McMaster-Carr excels in product variety and service speed, concerns about shipping and customer relations persist.
Summary generated with AI from recent reviews
Each source counts by its number of reviews. Only reviews written by people are scored.
| Source | Rating | Reviews | Weight | 6-mo | Fake risk |
|---|---|---|---|---|---|
Trustpilot Imported Trustpilot reviews | 3.6 | 60 | 100% | ● Low |
Monthly average rating from reviews written by people · latest review May 2026.
| Month | Average | Reviews |
|---|---|---|
| Jun 25 | 5.0 | 1 |
| Jul 25 | — | 0 |
| Aug 25 | — | 0 |
| Sep 25 | — | 0 |
| Oct 25 | — | 0 |
| Nov 25 | 5.0 | 1 |
| Dec 25 | — | 0 |
| Jan 26 | 5.0 | 1 |
| Feb 26 | — | 0 |
| Mar 26 | 5.0 | 3 |
| Apr 26 | 5.0 | 1 |
| May 26 | 5.0 | 1 |
Share of positive (4–5★) and negative (1–2★) reviews mentioning each topic · based on the 60 most recent reviews.
“I bought automotive parts (cooling system hose clamps)”
“Not interested in the customer if the customer RENTS SPACE from another commercial business”
Same method for every company: overall rating, legitimacy checks, the average rating of reviews mentioning each area and the 6-month trend · Vehicles & Transportation.
| Company | Overall | Legit | Delivery | Value | Service | Trend | Reviews |
|---|---|---|---|---|---|---|---|
| 3.6 out of 5 (good) | 100 out of 100 | 3.5 out of 5 (good) | 4.0 out of 5 (good) | 4.3 out of 5 (good) | — | 60 | |
| 4.5 out of 5 (good) | 100 out of 100 | 4.6 out of 5 (good) | 4.6 out of 5 (good) | 4.6 out of 5 (good) | — | 1,999 | |
| 4.1 out of 5 (good) | 100 out of 100 | — | — | 4.5 out of 5 (good) | — | 1,000 | |
| 4.4 out of 5 (good) | 100 out of 100 | 4.3 out of 5 (good) | 4.8 out of 5 (good) | 4.3 out of 5 (good) | — | 1,000 | |
| 1.9 out of 5 (poor) | 100 out of 100 | 1.2 out of 5 (poor) | 1.3 out of 5 (poor) | 1.7 out of 5 (poor) | — | 1,000 |
Bottom line: McMaster-Carr is #4 of 5 on overall rating in this group. On delivery, BJS Home Delivery scores higher (4.6 vs 3.5).
60 reviews of McMaster-Carr. Filter by what matters to you.
I bought automotive parts (cooling system hose clamps). They carry aircraft-type clamps that can be used on cars. Their pricing is reasonable, shipping cost is reasonable and overall I am happy with them. They are my go-to place for specialized clamps.
This company continues to amaze and impress us. We have many different "parts stuff" needs. From 1/2" T nuts to angle mount leg casters, they have it. Add to that, their price and delivery. NO ONE compares. I have now told all of our people that they are to buy here first.
I order every day from various online stores for my company. I live in a small city in western Canada and McMaster Carr somehow delivers parts next day for a reasonable shipping cost. Always incredible customer service. I tell everyone to check them out when they need anything hardware or mechanical related.
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Polarized pattern: few middle ratings. 62% of recent reviews are 4–5★ and 30% are 1–2★.
I contacted sales for some Allen head studs. They gave me the right parts. And came when they said it would...
UPS delivered my McMaster-Carr order, took a photo from which it is impossible to identify the drop-off location. I contacted McMaster-Carr and, within 30 minutes of my e-mail they wrote to apologise, issued me with a credit and reshipped the order to a local UPS dropoff. It was just a small order for such a big company, despite that, they responded promptly, with courtesy and in a manner above my expectations. Well done!
Easy and organized sites, good explanation of hardware with a wide variety. I bought a few things and mistakenly they were wrong(my error)(twice), they very easily solved the it for me and helped me out with a quick response. They won a long term customer, if you're looking for anything they have trust me you can't go wrong with them.
These guys have virtually EVERYTHING I've wanted in the way of hardware, both personally and for my job as a mechanical engineer at a Navy base manufacturing rocket propellant. Their catalog looks like an old-time urban phone book; it's about 3" of thin paper pages, with the best lookup system I've ever seen, but they can be tight about giving out the hard copies. And they have had 2-day delivery on most items since long before Amazon ever existed. They are not a discount operation however; their pricing is mainly manufacturer suggested retail.
Read my review if you're left confused by the mixed reviews. I needed various hardware that i couldn't find in local big stores. The Mc Master Carr website is exquisitely designed from my engineering background. Before placing my order i was worried about the negative reviews on undisclosed excessive shipping cost. But it turned to be completely untrue (either that or they changed their checkout procedure). BEFORE i paid i was given the shipping cost in the kart and it was not expensive at all like some wrote. The box came perfect dimensions, with a nicely printed shipping page enclosed listing all the items (something the fast degrading AMZN company is now failing to do). Every enclosed item was numbered to show it matched the list. Not only that but they ship you everything in one shipment ( something AMZN does not give you the option to do. I recently ordered 5 items from AMZN and got 5 shipments over 3 weeks what a mess). The delivery occurred just in 2 days. I can only highly recommend McMaster-Carr. Also it's not really more expensive. I was very happy. I think those reviewers who complain are doing odd things like buying with one address and name and shipping to a commercial different address. There is no reason a merchant would refuse to sell unless the seller is posing a risk or problem. All i can say is that if you're within the Usa then just go ahead and place your order, everything went smoother than an amzn prime order for me. Especially no worries about receiving returned items or poorly packaged or damaged items as seen from AMZN since they increased their staff with DEI people.
Amazing parts selection and customer service. never had the wrong part shipped, EVER. 100's of orders. Fast shipping. If you call, someone directly answers the phone. Unheard off
I have ordered from McMaster before and never had a bad experience. If anything , the shipping was super fast in 2 days. To me that's fast considering the amount of orders they have to fill daily. When I need an odd part that's hard to find anywhere, MCMaster will always have it. Recently, they stood behind a product that I bought a couple of years ago. I am not saying that they can always do that but considering my situation and how the product should've lasted a lot longer they replaced it, no questions asked. BTW, the product failing was not any of MCMaster's fault. It was the manufacturer's job to step in but they instead stepped up and provided a great customer experience. Thanks to Cindy for facilitating this quick process!
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 🙂🙂🙂🙂
I can't believe they had my product "In-Stock" and shipped it to me the next day. It was great.
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.
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!
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.
Hi, I've bought many products and customer service is very good, they answer the phone, they look things up and straighten things out. They will request clarification if they are uncertain what was ordered, great company to work with.
McMaster-Carr is a comprehensive supplier of industrial products, catering primarily to businesses in the manufacturing, construction, and maintenance sectors. With a catalog exceeding 595,000 items, the company provides a vast selection of categories that include fasteners, plumbing supplies, electrical components, material handling equipment, and safety supplies. Their inventory is designed to meet the diverse needs of professionals seeking reliable parts and tools for various applications. Serving a wide range of industries, McMaster-Carr prides itself on efficient service, with 98% of products ordered shipping from stock and available for same or next-day delivery. Their user-friendly website ensures that customers can easily navigate through product categories such as heating and cooling, hand tools, and furniture storage, making it a go-to resource for those looking for quality industrial supplies.
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