Categories: Adhesives, Electrical,Fasteners General Supplies, Hand Tools, Hydraulics & Pneumatics, Janitorial & Cleaning, Material Maintenance, Material Handling, Metal Working, Painting & Supplies, Plumbing, Power Tools & Accessories Safety Products, Valves & Fittings. In 1995 Walter A. Wood became a founding member of Affiliated Distributors (AD), an independent marketing cooperative serving the largest independent industrial distributors in the United States Affiliated Distributors is the largest organization of its kind, with over $27 billion in annual purchases, over 500 members and 2,900 warehouses in North America. This provides Walter A. Wood the benefits of large national chains while retaining the flex