Feed Screw, Y-Axis 16 TPI Extended
Y-Axis feed screw for the HiTorque mini mill.
This 16 thread per inch feed screw is used on HiTorque mini mills where the table advances 0.0625" per turn of the hand wheel.
The Y-Axis is the front-to-back feed on the mini mill.
In your instruction manual, this part appears on the parts list as: