Nickel plated brass construction for superior protection of flexible cables. •Nickel-plated finish over brass provides excellent corrosion resistance and durability. •IP 68 rated. •For use in threaded holes. •Multiple sizes for flexible cord diameters ranging from .118" (3,0 mm) to 2.047" (52,0 mm). •We recommend using the smallest cordgrip that accommodates your cable size. •Sealing gland is molded in Thermoplastic Polymer Elastomer (TPE) Material. •NFPA parts feature a special TPE Gland tested for heat release and smoke emission (ASTM E 1354) and smoke toxicity (SMP 800). •Consult Heyco for availability of NFPA certified Brass Liquid Tight Cordgrips in Pg and Metric hubs. •DFARS Compliant