This kit contains 5 sizes hex countersunk plugs which are 304 stainless steelcast pipe fittings with male National Pipe Taper (NPT) threads for closing the end of a pipe. The countersunk plug has a recessed hex head for increased leverage with a wrench during installation and disassembly. It inserts into female pipes or fittings and connects with NPT threads, which create a tighter seal than straight threads. The plug is made from 304 stainless steel , which is higher strength and corrosion resistant.

Pipe fittings are components used for connecting, terminating, controlling flow, and changing the direction of piping in many different industries. When purchasing pipe fittings, consider the application, as this will affect material type, shape, size and required durability. Fittings are available threaded or unthreaded, in many shapes, styles, sizes, and schedules (pipe wall thickness).