RUMCO specializes in SEMS Fasteners including two-piece or three-piece assemblies. In ferrous and non-ferrous materials. With standard, cutting, or forming thread geometries. Special SEMS products include terminal washers, square kone washers, and Crest Cup^® washers.

Other products and special items include:

• Machine screws
• Fully tri-lobular or tri-point
  thread-forming screws
• Sheet metal/tapping screws
• Specialty screws
• Weld screws
• Rivets
• Thumb screws
• Metric/unified threads
• Socket cap screws