Jephco has 3/16 corbys, but no Loveless that size. They have 1/8" loveless screws, but no 3/16. Sheffield's has 3/16 loveless though.
It's a nice tight unit, was just wondering, Jantz is twice the price as Jephco.
http://www.jephcosupply.com/products...dle.html#thumb