BS Conduit threads are used for fittings of electrical conduit pipes used for electrical wiring.
Specification : BS 31-1940
Manufacturing Range
Thread Plug , Thread Rings , Check Plug & Wear Check Plug Gauges of Diameter 1/2, 5/8, 3/4, 1, 1.1/4, 1.1/2, 2, 2.1/2"