The Fig 400 Hammer Unions are used in manifold & line connections, pump suction and mud services. They are manufactured from quality steel meeting ASTM and/or AISI standards. All Hammer Unions have a three winged lug nut and self-locking Acme threads for faster make-up and break-out using only a hammer.
Buy this Hammer Union to ensure long and dependable service, even in the most extreme conditions!