Flexible Pigtail extender prevents sharp bends and extends cable life.Integral Sealing Ring ensures a superior seal at the clearance or threaded mounting hole location, every time. Widest range of approved cable diameters.IP 68 rated.Approved for NEMA 4, 4X, 6 and 6P applications.Ratchet design of sealing nut assembly provides superior anti-vibration protection and ensures a firm grip on the cable.Acme threads on body prevent skipping and speed installation. All nylon construction with Buna N sealing gland resists salt water, weak acids, gasoline, alcohol, oil, grease, and common solvents. (This feature is not assessed by UL.)Multiple sizes for flexible cord diameters ranging from .065" (1,7 mm) to .705" (17,9 mm).We recommend using the fitting with the smallest maximum diameter that will fit your application.Unassembled Nylon Locknuts INCLUDED.