This Threaded Sealing Plugs with Drain Head is suitable for internal threads according to DIN 3852-1, ISO 11926. Nylon 6 is used for its stability to withstand temperatures of up to 150 °C and pressures up to 10 bar (during painting processing and testing). It guarantees a very high resistance against hydraulic fluids, acids, base alkalines and Solvents. The hexagon head allows tightening and removal with either a screwdriver or a spanner or special tool. In addition, This product is guaranteed seal and it is extremely economical when compared to metal.