Shaft collar with locking clamp connects a .250 OD shaft to a .368 OD shaft. Allows easy attachment and removal. Material is high strength aluminum bronze, as strong as stainless steel, yet machines extremely well. This shaft collar is used on our Leadscrew Sliders.
The tolerances of both IDs are reamed to +-.0004 inch. You may easily bore the .368 ID larger to accommodate your larger leadscrew or shaft.