These steel couplers make solid, invisible threaded joins for canes, staffs, pool cues or knock-down applications.
The coupler consists of two nuts (7/16" in diameter by 1" long) with a 1/4-20 joining screw.
The camera-mount is a variation of this coupler (with a 1" nut and a 1/2" nut) specifically for joining a knob to the end of a staff so the staff can be used as a camera monopod by simply removing the knob and mounting the camera on the exposed 1/4-20 stud. (Both video cameras and 35mm cameras take a 1/4-20 mount.)
Made in Canada.