... Red Blue Grey 3.Special designation,good stren Specificationsplastic cable gland, V2(UL94), free of halogen, CE, UL, RoHS, UV resistance ... .037~4460156510HSK-M63GHSK-M63BM63X1.537~4463156510HSK-M64GHSK-M64BM64X2.037~4464156510 Metric Plastic cable gland