Threaded recessed hex plugs cap a fitting or piping end using an inside hex socket, and are available in common NPT threaded connection sizes. NITRA brass recessed hex plug fittings are rated for a maximum pressure of 800 psi, and work well with air, water, oil, oxygen, nitrogen or argon.
Brass Recessed Hex Plug Air Fittings
NITRA brass air hose fittings are machined from quality brass bar stock or forgings. They work well with air, water, oil, oxygen, nitrogen and argon. Available in most popular styles and sizes, the fittings all have NPT threaded connections.