Pack of 25 brass countersunk hex head male pipe plugs with 1/4 NPT threads, designed for sealing and capping standard threaded ports in air and water systems. Solid brass construction and a hex head make these plugs durable and easy to install for maintenance, repairs, or installations. Key benefits Reliable seal: 1/4 NPT male threads provide a secure connection to standard female ports, helping prevent leaks and contamination. Durable material: Machined brass offers long service life in typical air and water applications. Easy installation and removal: Hex head design allows quick tightening with a wrench for a consistent, repeatable seal. Flush seating: Countersunk profile enables a lowprofile, nearflush finish where space or clearance is limited. Bulk convenience: Quantity 25 supply is ideal for small projects, maintenance stock, or replacing multiple plugs at once. How this product solves common problems Caps unused or damaged ports to stop air or water leaks during repairs or system changes. Provides a dependable temporary or permanent closure for manifolds, valves, and fittings. Simplifies maintenance by offering a consistent, easytoremove sealing solution when access or future changes are expected. Key attributes Thread size and type: Male 1/4 NPT Material: Brass Head style: Countersunk hex for flush fit and wrench tightening Suitable media: Air and water Quantity: 25 pieces Practical use scenarios 1) Pneumatic systems: Seal unused ports on compressors, manifolds, and air tool setups to maintain system pressure and prevent leaks. 2) Workshop and building plumbing: Cap supply lines, test points, or temporary connections in water distribution and irrigation lines during installation or maintenance. 3) Equipment maintenance: Close off auxiliary ports on machinery, tanks, or hydraulic manifolds during troubleshooting or storage. Installation tips Thread with appropriate wrench size for consistent torque. Use suitable thread sealant or PTFE tape when required for higher pressure or permanent installations. Inspect mating threads for damage before installation to ensure a proper seal. This pack provides a practical, ready supply of 1/4 NPT brass plugs for contractors, technicians, and DIYers working with air and water systems.