Adjustment Screw, Knob, Unbraked, 38.1 mm Travel, Ball Tip, 1/4-80

The 9318 1.5 inch (38.1 mm) Adjustment Screw provides smooth, wobble-free adjustment combined with exceptional long-term stability and low susceptibility to thermal variation. It is the same 1/4-80 precision screw used in our optic mounts and allows you to build your own mounts or positioners. In addition to a travel of 1.5 inch (38.1 mm); the screw has a ball tip, unbraked brass bushing, and is knob adjusted.