Appropriate step gland, compression and fastening wires between two compartments, such as junction boxes or devices that require sealing. With lock nut and sealing washer to maintain water tightness. When used for cable passage of circular section, provide IP68 protection. A ring made of NBR inside offers a close and highly effective cable clamping. Designed for a wide range of applications such as electrical control boxes, piping systems, engines, motors. Molded nylon gray RAL 7035. According to IEC 698. Metric system.