5/8-11（內螺紋）轉1/4"（平滑內孔）2"長附止付螺絲聯軸器

I needed something long enough to bridge an awkward gap on my camera rig, and this 2-inch coupler fit perfectly. The 5/8-11 threaded end screwed on smoothly, and the set screw held tight without any wobble.

The set screw is what sold me—it locks the 1/4" smooth side in place without any wobble. The 2" length gives just enough reach to connect things in tight spots. Exactly what I needed for a quick adapter job.

Finally found a coupler that actually fits my mic stand’s 5/8-11 thread without any wobble, and the set screw locks it tight. The 2-inch length gives me plenty of reach for my boom arm. No more janky adapters.