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.
Checkout procedure on website doesn't provide a shipping quote. Received an email requesting additional information for shipping. Provided information and asked how much for shipping, got a reply back from someone else saying the order is cancelled due to non payment...
I buy an order per week for years. I only buy when I can't find the exact same thing somewhere else for cheaper. They have perfect customer service and shipping times, but shipping costs are calculated incorrectly and very often way too much. More, their prices are insanely expensive and they do "shotgunning". Some unique items will be cheap to get you on the common stuff. Some people simply click and buy overpriced things. They count on that and it's calculated into their business model. Lately, they became too expensive and it's my last to go place. Still like them, just know that it's overpriced. I do enjoy their checkout and shipping policies. They have never lied to me by doing this "fast" no hassle checkout. The only negative I can think of is they got to greedy.
Shipping charge is not disclosed at any time when placing an order. There is no next page where you have shipping options! When you click on "Place order" it is the final step and they can charge you whatever they want to for shipping. In fairness, their website is otherwise easy to use and the company responded within minutes to my concerns. The order arrived quickly and shipping charges were refunded to me after my complaint. If the shipping charges issue is resolved I would likely purchase from them again.
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Polarized pattern: few middle ratings. 62% of recent reviews are 4–5★ and 30% are 1–2★.
Though they have a tremendous product line and what you are searching for is fairly easy to find, their shipping practice is horrendous. If you order more than one part, even on the same order they ship it separate, and charge a minimum of 1 pound per item. I recently ordered a thrust washer which weighed in at .03oz and a lock collar. Together, less than a pound but shipped separate, I was charged for 2 pounds. $5.39 a pound.
$45 shipping for $45 worth of items that weigh maybe 2.5lb total. Shipping to Canada is not this expensive (I regularly ship from Canada to the US and it’s about $15 for 5lb) and I only ordered this small selection to try them out. I won’t be ordering anything again because there is zero transparency for shipping. They can charge whatever they like because you don’t get to choose if you want to complete the order with the shipping cost known.
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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