The 7211-851 is a polyamide locknut designed for PG 7 threaded connections in electrical enclosures and cable glands. Manufactured from polyamide 6 with 25% glass fiber reinforcement and stainless steel components, it provides excellent chemical resistance and durability. The locknut features a thickness of 5 mm and a wrench size (SW) of 19 mm, with an operating temperature range of -40°C to +100°C (-40°F to +212°F). It supports both PG and metric thread standards according to DIN 46320, making it suitable for diverse industrial applications including control panels, junction boxes, and equipment enclosures where reliable fastening and environmental protection are required.