ABC Supply Co

ABC Supply Co., Inc. is the nation's largest wholesale distributor of roofing, and one of the largest distributors of siding, windows and other exterior building products.

Welcome to Automated Fastening Systems We are a fastener distributor which focuses on, but are not exclusive to, the commercial construction industry. We stock a wide variety of specialty fasteners, anchors, power tools, and accessories. We use our unique customer service skills to determine needs and provide our clients with the proper fasteners and equipment to meet specific applications. Please feel free to browse our site for an overview of our products. For your convenience, our product pages are filled with links to a number of manufacturers we represent. To make your search even more effective we have provided a manufactures page designed to link you directly to your favorite manufacturers site. If you would like to visit our showroom and need directions, please view our directions page for a map with printable directions. Showroom hours are Monday thru Friday, 7:00am - 4:30pm. If you have any questions or comments, or need assistance with a fastener application, feel free to use our contact page, or call to speak with one of our skilled representatives.

McElroy Metal is an employe-owned and operated metal roofing manufacturer and distributor of industry-leading metal roofing products, including metal siding, wall panels, and more. We place a strong emphasis on customer service and providing a superior localized service no matter the job or your needs. At our Baltimore, Maryland Service Center, we offer prompt and reliable delivery of our metal roofing products and support throughout every stage of your metal roofing project. Feel free to contact us with questions or concerns and wed be happy to help.