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About McMaster-Carr

Engineers have been trusting McMaster since 1901. With over 500,000 products in stock, everything is at your fingertips for ordering. 

McMaster-Carr provides all of your basic industrial supplies. We have a large selection of screws, nuts, washers and bolts in stock. In addition, we are able to provide many raw materials including stainless steel and aluminum in many shapes and sizes, from sheets to bar stock. 

Need a new blade for your? We have all kinds of tools and accessories. Make sure not to forget about safety while you work. Eye protection is a must. So remember to get the best safety glasses and face shields to protect yourself and your workers.

Corporate accounts are welcomed and open Purchase Orders are able to be set up. Contact us to request your catalog.

With many locations across the United States, quick delivery is available at a reasonable price. Many products can be delivered the next day at no or little extra cost. 

Community Reviews Summary

176 Community Reviews 4.77/5 Overall Rating

All Ratings

Overall
Speed
Price
Quality

Rating Distribution

Top Reviewed Services

Wide variety of components


Clinical , Medical Device
03/15/2014

Speed 4 / Price 4 / Quality 4

They have a large catalog to chose from.

Strengths: Variety of electronic components

Needs to improve: They can be pricy

Great service


Purchasing , Medical Device
03/28/2014

Speed 5 / Price 3 / Quality 5

Extremely fast no hassle delivery. Quality computer components and raw materials.

Strengths: Fast delivery, customer service

Needs to improve: N/A

Great selection


Purchasing , Medical Device
04/02/2014

Speed 5 / Price 3 / Quality 5

Had so many supplies, I could barely choose what I wanted

Strengths: Quality, Large selection

Needs to improve: Price

Mcmaster Review.


R & D / Engineering , Medical Device
02/20/2014

Speed 5 / Price 5 / Quality 4

very easy to order and fast service.

Strengths: they are fast.

Needs to improve: they dont carry very specialized

Reliable component source


Supply Chain/Logistics , Medical Device
02/27/2014

Speed 5 / Price 3 / Quality 5

Always have material available in small quantities.

Strengths: Extraordinary stock/inventory listing. Ease of ordering.

Needs to improve: High cost.

two thumbs up


Supply Chain/Logistics , Consumer Products
05/27/2014

Speed 5 / Price 5 / Quality 5

they have wide selection of everything that we need. great quality.

Strengths: great product

Needs to improve: none

You can make anything with the help of this company


R & D / Engineering , Medical Device
03/05/2014

Speed 5 / Price 2 / Quality 3

Who doesn't use Mcmaster for prototyping??

Strengths: Overnight delivery. Vast catalog.

Needs to improve: Pricing can be insane.

General store for supplies


Manufacturing , Medical Device
03/13/2014

Speed 5 / Price 3 / Quality 3

Easy to find and order what you want

Strengths: Gigantic inventory of parts

Needs to improve: None

One Stop Shop


Manufacturing , Medical Device
02/21/2014

Speed 5 / Price 5 / Quality 4

Service is great, fast delivery.

Strengths: They have everything you need.

Needs to improve: No physical stores

Overall McMaster-Carr is good


Manufacturing , Medical Device
03/03/2014

Speed 5 / Price 5 / Quality 4

Pleasant and great service

Strengths: Fast Service, variety choices, and good prices.

Needs to improve: less customerization.

On time delivery and good providing tools you need


Supply Chain/Logistics , Medical Device
03/17/2014

Speed 5 / Price 4 / Quality 5

Tools are easy to use and good quality

Strengths: Deliver on time

Needs to improve: None

great company


Clinical , Medical Device
04/15/2014

Speed 5 / Price 5 / Quality 5

Amazing company that truely does care about their customers.

Strengths: High quality

Needs to improve: Non

good company to work with


Purchasing , Biotechnology
03/27/2014

Speed 5 / Price 5 / Quality 4

well design business concept

Strengths: fast shipping and a lot of choices

Needs to improve: non

Quality service


Clinical , Medical Device
03/20/2014

Speed 5 / Price 4 / Quality 5

Good quality components fir all your application needs

Strengths: Knowledgeable service

Needs to improve: Price

Supply products to maintain manufacturing


R & D / Engineering , Medical Device
03/17/2014

Speed 5 / Price 5 / Quality 5

No issue so far

Strengths: Cheaper than other vendors. Fast delivery.

Needs to improve: None

They supply a wide variety and the right place for your convenience.


Clinical , Telecommunications
06/14/2014

Speed 5 / Price 5 / Quality 5

Very reliable and helpful.

Strengths: Great customer servive

Needs to improve: None