About Us Our Quality Policy  "The quality policy of National Cap & Set Screw Company is based on customer satisfaction, both in the product itself and all of the associated activities necessary to meet the customer requirements. Our constant effort is to work toward going beyond the minimum standards set forth by the industry and / or the customer as we develop a culture of continuous improvement." Peter C. May President National Cap & Set Screw Company, founded in 1941, is an established fastener sales and service organization, specializing in the manufacture and supply of nuts, bolts, screws, washers, and associated products. We are Manufacturers of standard and special socket screws, studs, and various specialty items within our machine capacity range. We are Distributors of all types and sizes of fastener products produced throughout the country, specifically geared to the specialized needs of industry. The completeness of our line makes it possible to supply all fastener needs. You can always depend on National Cap & Set Screw Company to give you prompt service and quality products! We guarantee satisfaction! For over 60 years, we have constantly expanded our lines to give industry a much needed "one source" fastener shopping service. Our Customers represent all types of industry. We serve a wide range of their fasteners needs. Serving the USA, Canada and Mexico. Call us at 800.848.9633 or email us at natcap@mchsi.com