Set of 2 7/16"-20 UNF Zinc-Plated Steel Plugs with Rubber Seal for Low and High Pressure Applications

Compatible with low and high pressure systems, including air, water, oil, mechanical and hydraulic equipment. Thread size is 7/16"-20 UNF, 4000 psi, designed to block or seal threaded ports in various fluid or gas systems. Made of zinc coated steel for corrosion resistance. Includes rubber seal to ensure a waterproof connection. Package includes 2 pieces of UNF 7/16"-20 steel caps.