Reduction SKINDICHT® MR-M ATEX 20X1.5/16X1.5, reduction, internal thread: M 16, external thread: M 20, nickel-plated brass, use in Ex areas, areas of application: Equipment group II / category 2G+1D, equipment, machines and systems, chemical and petrochemical industry, mobile offshore and ship applications, benefit: enables the use of cable glands whose connection threads are smaller than existing threaded holes, with guide groove for O-ring, assembly with open-end wrench