N294Fe adaptor is made from high quality chrome plated brass and has one external 1” – 14 TPI thread and one internal 1 1/4”–11 TPI thread. The adaptor can be used to convert from 1 1/4” – 11 TPI to 1”-14 TPI. The adapter can be tighten using a torque wrench. This mount is manufactured in premium quality materials in order to prevent galvanic corrosion. The mount is always subject for improvement. The mount has the same rugged design as all other AC Antennas products thus it withstands harsh environmental conditions, both on Sea and Land.