Nickel plated brass construction for superior protection of flexible cables. Nickel-plated finish over brass provides excellent corrosion resistance and durability. IP 68/ IP 69K rated. For use in clearance or threaded holes. Meets the European standard EN 62444 version A for metric cordgrips. Long metric threads provide additional threads for easy locknut assembly. Multiple sizes for flexible cord diameters ranging from .079" (2,0 mm) to 2.047" (52,0 mm). We recommend using the smallest cordgrip that accommodates your cable size. Sealing gland is molded in Fluorine Rubber (FPM) Material which provides great heat resistance. Locknuts not included. For metal locknut specifications or to order locknuts separately, see: NPT, PG,or Metric. DFARS Compliant Strain relief: Version A acc. to EN 62444