Steel armored pipe thread are a group of threads with a flank angle of 80°. You will also as tank thread (pg) or Steel tank pipe thread designated. Since the armored steel tubes used are usually relatively thin-walled, the thread depth is not very large. The exact specification of this thread type is defined in the DIN standard din 40430. The area of application for Pg threads was in the field of electrical installations, initially with the eponymous armored pipes and, above all, with cable glands for tight cable entry into electrical devices, control cabinets, junction boxes and connectors. In these areas, the Pg thread type has largely been replaced by metric threads according to EN 60423. In addition, Pg threads are still used today in special areas, such as the Pg13.5 thread for scre.
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