We carry closing plugs for G-threads, Rp-threads, NPT-threads and JIC-threads in common designs acc. to, e.g. DIN 906, DIN 908 and DIN 910. These are screwed into the female threads and seal the threads. The closing caps are screwed onto the male threads and also seal these. We offer these fittings in brass, nickel-plated brass, galvanised steel, stainless steel, malleable case iron or plastic. You can select from various designs, such as with hexagon socket, with exterior hexagon, without collar, with square, with O-ring seal or with conical threads.