Pin, Belt Tensioner, 9x20 Bench Lathe

The flattened sides on the head make it really easy to get a wrench on, which saved me a lot of fiddling. Fits perfectly on my 9x20 and the threads were clean right out of the box.

That 16mm unthreaded section is exactly what I needed—the tensioner plate spins freely without any wobble, and the flattened sides on the head make it easy to grip with a wrench. Threaded end seated snugly on the first try.

Took a gamble that the unthreaded 16mm section would actually let my tensioner plate spin freely, and it fits perfectly with no binding. This solved a wobble I’ve been chasing for weeks on my 9x20.