This adapter meets the standards for ASTM B117/ISO 9227, ISO 8434-2, SAE J514, has a length of 41.7 mm, a maximum operating pressure of 7,500 psi and is designed for the following applications: gas handling connections and hydraulic fluid. It is resistant to corrosion, is made of steel, and has a M18x1.5 thread. Plus, it has a 24 mm hex size.