*Actual Product May Vary In Store

Fully hardened for extra durability and to protect them from wear due to constant use Ball check in the head prevents dirt and grit from getting into the fitting Heavier wall thickness for extra strength Zinc-plated with yellow passivated finish, for maximum protection against corrosion Stress relieved and tempered carbon steel spring Every fitting is individually inspected and batch tested to 8000 psi for industrial-grade and to 5000 psi for commercial-grade Thread rolled taper threads are stronger and durable due to hardening and toughening of threads, this is not achievable in a cut thread process, as the threads become brittle on the periphery Dome type riveting completely covers the spring enabling the spring to be firmly secured in its place