The 3584B is an M20 liquid tight threaded plug used to seal openings in hydraulic and pneumatic applications. This black nylon plug features a hex head with 0.98-inch (24.9 mm) wrenching flats and has an overall length of 0.62 inches (15.8 mm). It provides an IP68-rated seal for pressures up to 70 psi and features an integral sealing ring, which eliminates the need for a separate O-ring. Made from electrically non-conductive Nylon 6/6, it resists oil and heat up to 105°C, offering a non-corrosive and cost-effective alternative to metal plugs.