New PEM S-RT self-clinching free-running locknuts from PennEngineering (Danboro, PA) feature a modified thread angle enabling easier tightening of mating screws and vibration-resistant locking performance in thin metal assemblies. The modified thread formation allows mating screws to spin freely during the attachment process until clamp load is induced during the screw-tightening process. The applied clamp load then engages the locknut’s vibration-resistant locking feature, which securely and reliably locks the screw in place. Additional features include:
- The ability to be installed into aluminum or steel sheets as thin as .030”/0.8mm and become permanent parts of an assembly.
- The back side of the host metal sheet for screw insertion will be flush or sub-flush and the assembly side will be flush or sub-flush, ideally suiting sheet-to-sheet attachment applications.
- A carbon steel design.
- Thread sizes from #4-40 through 5/16-18 and M3 through M6 and in a variety of shank lengths.
- Zinc plating finishes are available in standard colorless or optional yellow.
For more information, visit www.pemnet.com.