The SloanLED nylon nut is designed for compatible lighting assemblies where secure threaded fastening is required. A nylon nut is useful because it helps hold the connected component in place while offering a lightweight, corrosion-resistant fastening option suited to many lighting and wet-area applications.This replacement is especially useful when the original nut is stripped, cracked, lost, or no longer tightening securely. Matching the correct 3/8-16 thread specification helps preserve intended fit and supports dependable assembly retention during service or replacement work.The 400338 is a practical service part when a compatible SloanLED lighting setup needs a nylon nut to restore secure fastening and stable component support. SloanLED nylon nut 3/8-16 thread specification Helps restore secure fastening support Useful when the original nut is damaged or missing Supports cleaner and more dependable lighting assembly