The SC-50 is a 0.50 oz (14 g) Steel Balancing Clamp, 5/16" throat size. This is made of 12L14 steel with allen cup point set screw 8/32 x 1/2".
Allen wrench size 5/64" fits this screw size.
Screws and Allen Wrenches can be purchased here
Posted by Ron Dillon on 10th Nov 2015
The product is packed well for shipping and arrives promptly and ready for use.