Flexible Pigtail™ extender prevents sharp bends and extends cable life. IP 68 rated. Widest range of approved cable diameters. For use in clearance or threaded holes. Acme threads on body prevent skipping and speed installation. All nylon construction with TPE 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 .069" (1,8 mm) to .709" (18,0 mm). We recommend using the fitting with the smallest maximum diameter that will fit your application. Locknuts not included. For nylon locknut specifications or to order locknuts separately, see NPT Nylon Locknuts. For Heyco Liquid Tight Threaded Plugs, click here.