Suitable for electric tracks, articulated arms, odd numbered hands, lamp stands, shoe racks, ballheads, telescopic arms, selfie sticks, tripods The camera nut is compatibles any hinged arm with 1/4in-20 thread at the center Tripod nut connector, column height 100mm, diameter 15mm, center standard 1/4-20 threaded hole tripod nut converter, suitable for connector use 10cm 1/4in female to 1/4in female screw converter, 1/4-20 internal thread to internal thread tripod nut connector suitable for cameras, fill lights The black nut connector is from aluminum alloy, with smooth pattern, clear threads, durability, and resistance to rust