[6] On June 8, 2006, MSC completed the acquisition of J & L America, Inc. DBA J & L Industrial Supply (J & L), a subsidiary of Kennametal, for $349.5 million.

In 2013 the company opened its co-headquarters office in Davidson, North Carolina, which is located in the Charlotte metropolitan area.

In 2018, MSC acquired All Integrated Solutions, a value-added distributor of industrial fasteners and components, MRO supplies and assembly tools based in Franksville, Wisconsin.

In 2019, MSC completed a transaction with TAC Global Solutions, a Mexican industrial distribution company, to expand into Mexico.

In 2023, MSC acquired Buckeye Industrial Supply Co., an independent metalworking distributor based in Columbus, Ohio, and Tru-Edge Grinding Inc., a St. Henry, Ohio-based custom tool manufacturer.