Directories of Companies

• Thomas Register - directory of 156,000+ manufacturers
  
• McRae's Blue Book - directory of manufacturers, by product

Comprehensive Component Catalogs

• Grainger - lists 600,000 products
  
• MSC - lists 500,000 products
  
• McMaster-Carr - lists 450,000 products

Structural Components

• Thyssen Aluminum
• Thyssen Stainless Steel
• Ryerson
• Small Parts
• Tube Methods

Hardware (screws, nuts, bolts, chains, etc.)

• Grainger
  
• McMaster-Carr
  
• MSC
  
• Small Parts
  
• Cordova Bolt
  
• ACCO Chain & Accessories

Bearings, Gears, Drives

• SKF General Catalog
  
• Boston Bearings
  
• Emerson Power Transmission
  
• MRC Bearing Services
  
• Nordex
  
• Berg
  
• Boston Gear
  • Bearings
  • Gears
  • Helical and Bevel Gear Drives
  • Worm Gear Drives
  
  
• Stock Drive Products
  • Handbook of Inch Drive Components
  • Handbook of Metric Drive Components

Tubing (also see Structural Components)

• Tube Methods
  
• GTC - Greenville Tube Corporation

Plastic Structural Components (see other listings also)

• BRP Design Guide

Gratings

• Amico
  
• McNichols
  
• Ryerson
  
• McMaster

Electrical Components

• Servo Systems
  
• Digi-Key
  
• Globe
  (Note - a number of additional electrical component catalogs are shelved in the Reference area)

Lab Equipment and Instrumentation

• Cole Parmer
  
• National Instruments
  
• Omega (multi-volume set)
  
• Edmund Scientific

Related Design Guides

• ASD/LRFD, NDS, National Design Specification for Wood Construction (TA666.A541 2006 - on Reserve)
  
• Wellington Sears Handbook of Industrial Textiles (TS1770.I53A33 1995)
  
• Fabric Glossary (TS1445.H84 1996)
  
• Product Design with Plastics (TA455.P5D95 1982)