The PHOENIX CONTACT A-INL-M20-P-BK counter nut is a crucial component for securing threaded connections, particularly those utilizing M20 x 1.5 threads. Constructed from durable PA (Polyamide) material, it offers excellent chemical resistance and mechanical strength. Its jet black RAL 9005 finish provides a consistent and professional appearance. This counter nut is ideal for applications in electrical enclosures, control cabinets, and other industrial settings where robust and reliable threaded connections are essential. It is RoHS compliant, ensuring environmentally responsible use. The nut's dimensions, including a 26mm wrench size, facilitate easy and efficient installation and maintenance.