McMaster-Carr

Industrial hardware, raw materials and CAD resources for building and maintaining equipment.

Illustration of fasteners and raw materials capabilities — AI example

About McMaster-Carr

McMaster-Carr supplies the mechanical hardware, raw materials, tools and shop supplies used to build, repair and maintain equipment. Its catalog spans fasteners, bearings, shafts, power transmission components, tubing, fittings, seals, metals and plastics, alongside cutting tools, measuring equipment and safety supplies. Engineers can compare product specifications while sourcing the purchased components around a custom assembly. The company also maintains downloadable 2D drawings and 3D CAD models for many products, including simplified models for large assemblies and a SolidWorks add-in. Customer service helps with product and order questions, and its contact page lists regional sales and will-call locations. Material certificates are available for applicable purchases.

Products and services

Fasteners and mechanical components

Supply of screws, nuts, washers, bearings, shafts, couplings and other components for equipment builds and repairs. Product pages support selection by dimensions, material and other specifications.

Raw materials and fluid-handling supplies

Metals, plastics and other stock materials, plus pipe, tubing, hose, fittings and seals. The catalog brings material and connection choices into the same sourcing workflow.

Shop tools and maintenance supplies

Cutting tools, abrasives, measuring instruments, hand tools and safety products for fabrication shops and maintenance teams.

CAD resources

Download 2D drawings and 3D product models in common engineering formats. Simplified models and the SolidWorks add-in help incorporate purchased components into assemblies.

Order support

Regional sales and customer service teams handle product and order questions. The contact page provides phone, email and will-call information for the available locations.

Technical product support