FeaturesConcretetight when tapedSecures into knockout with locknut0.38 in Dia end stopAllows to securely hold cables in low profile height fixtures with 1/4 in knockoutFits both standard round 1/4 in knockout (17/32 in Dia and 5/8 in Dia knockout with flatsFurnished with 1/4-18 NPS fixture nut for easy tighteningRecommended for use with non-metallic sheathed cable, AC, flexible metal conduit, MC cable both steel and aluminum jacketedPrimarily for use with low silhouette under cabinet fluorescent fixtures