Since 1981, Rumco has specialized in quality 2-, 3- and 4-piece SEMS and fastener products including: quality cold-headed fasteners, machine screws, sheet metal/tapping screws, weld screws, rivets, specialty screws, thumb screws, metric/unified threads, socket cap screws, Crest Cup?, terminal, countersunk, and nylon washers.

Rumco Fastener Division provides custom design, manufacturing and outside services including: heat-treating, plating and coating in minimum orders from 1,000 to several million pieces.