McMaster-Carr

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McMaster-Carr Supply Company is a private, family-owned supplier of Maintenance, Repair and Operations (MRO) materials and supplies. McMaster maintains over 555,000 products in a catalog offering a variety of mechanical, electrical, plumbing, and utility hardware not usually located from a single source.

The company is based in Elmhurst, Illinois and has distribution branches in Robbinsville, New Jersey; Santa Fe Springs, California; Atlanta, Georgia and Aurora, Ohio.

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Catalog

McMaster-Carr annually releases a large catalog containing the bulk of its product selection. The print edition of the catalog is noted for its limited distribution, sent only to established customers.

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Online

Website

McMaster-Carr's website has been used as a positive example of link-rich design and good user interface. The website also includes useful design tips and explanations of material properties as well as a categorical parametric search engine. McMaster Carr withholds manufacturer identification and brand names of most of the products they sell. The site ranked third in a 2002 study performed at Stanford University about trust and credibility, just behind Amazon and Barnes & Noble.

Mobile phone app

The McMaster app was released in May 2013 for the iPad and March 2014 for Android tablets.

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Awards

In 2015 McMaster-Carr was recognized by customers, in a survey by B2B business reviewer VendOp, as one of the top B2B vendors in the United States in multiple categories.