The barrel nut seems ordinary but its function is extraordinary, according to my experience. It could attach magic arm with 1/4¡± screw on the one end and attach cold shoe mount with 1/4" screw on the other end. That is great!
Barrel Nut (862) with center 1/4"-20 thread
Package Contents:
1x Nut
Barrel Nut (862) with center 1/4"-20 thread
Package Contents:
1x Nut
