Locknut SKINTOP® GMP-GL-M 40X1.5 RAL 7001 SGY, locknut, M 40, wrench size: 50mm, silver gray, polyamide, halogen-free, , Areas of application: Black versions are UV-resistant and therefore well suited for outdoor use,For thin-walled housings without a thread that only allow one through hole,For locking a SKINTOP® /SKINDICHT® cable gland on the inside of the application (e.g. housing),Good oil and chemical resistance, Benefits: Contact surface facilitates easy assembly using an open-end wrench and at the same time protects a housing from scratches,Self-extinguishing in accordance with UL94 V-2 (flammability test for plastics),High stability thanks to glass fiber reinforced polyamide,UL certification in accordance with technical data enables use of the product in North America (only valid in combination with a UL-approved SKINTOP® cable gland made of plastic)