The piece of hardware on a counterweight arbor with a thumb screw that goes over the rods of the arbor and is tightened at to top of the stack of counterweight to hold the spreader plates in place. Show contributors This page has been seen 814 times. Created by DaveySimps on Aug 12, 2013
The piece of hardware on a counterweight arbor with a thumb screw that goes over the rods of the arbor and is tightened at to top of the stack of counterweight to hold the spreader plates in place.
