The SloanLED compression nut is designed for compatible lighting assemblies where secure threaded fastening is needed. A compression nut is useful because it helps hold the connected component firmly in place, supporting cleaner installation and more dependable long-term stability within the lighting setup.This replacement is especially useful when the original nut is stripped, damaged, corroded, or missing. Matching the correct hex dome 3/8-16 configuration helps preserve intended fit and restore dependable assembly support during service or replacement work.The 400587 is a practical service part when a compatible SloanLED lighting setup needs a compression nut to restore secure fastening and reliable installation support. SloanLED compression nut Hex dome 3/8-16 design Helps restore secure fastening support Useful when the original nut is damaged or missing Supports cleaner and more dependable lighting assembly