Straight Thru Extra Grip NPT Liquid Tight Cordgrips ensures a superior seal at the clearance or threaded mounting hole location every time. All are constructed with Nylon 6/6 material and a Buna N or TPE sealing gland which resists salt water, weak acids, gasoline, alcohol, oil, grease, and common solvents. Includes the widest range of cable and/or thread sizes available, specifically 6 threads for cables ranging from 0.065 in - 1.450 in (1.70 mm - 39.60 mm).