Tripod nut connector with center standard 1/4"-20 thread hole tripod nut converter for connectors use. Suitable for motorized rails, articulating magic arms, odd hands, light stands, shoe stands, mini ball heads, extension arms, tripods, etc. Camera barrel nut is compatible with any articulating magic arm with 1/4"-20 thread on center. | Black barrel nut connecting nut connector is made of aluminum alloy, smooth surface, diamond pattern, clear thread, long-lasting, not easy to rust. | Tripod screw converter is simple installation and disassembly, the threads on both ends of the 1/4" column nut connector's connecting ports are clear and accurate, and the diamond pattern increases the friction on the outer wall, so you can turn the screw adapter more easily, and you only need to tighten it evenly and forcefully to complete the installation. | 1/4" Female to 1/4" Female with center 1/4-20 thread adapter, photo equipment camera tripod nut accessory, column height 18mm, diameter 17mm, weight 8g. | You will get 3pcs 1/4"-20 Female screw double thread adapter. The tripod screw nut is lightweight and easy to carry. You can hold your camera on nice and sturdy, help you gain more rig combination possibility and freedom in your photo shooting. They are great little pieces of equipment to own for any photographer.