As a leading cold-heading fastener manufacturer, Rumco Fastener Division specializes in a wide variety of SEMS and custom fastener products. For over 30 years customers have made us their manufacturer of choice because of our ability to meet custom requirements, our depth of product lines, our manufacturing capabilities and our ongoing commitment to customer satisfaction. RUMCO specializes in SEMS and custom fasteners including 2-, 3- and 4-piece assemblies, in ferrous and non-ferrous materials, with standard, cutting or forming thread geometriesWe have a complete range of manufacturing equipment allowing us to make quick, efficient production runs. Whether the order is for 1,000 or a million pieces, Rumco has all the resources to meet customer fastener requirements.