RodTrees.com base plate thumbscrews are 11/16 long and thread pitch of 1/4-20. Our design uses stainless steel screws, Buy new or replace your worn out old thumb screws with a better finger grip for tightening or loosening.
This item is sold as a set of 4 Thumb Screws, if you need an additional pair select quantity 2 when adding to the cart!
All RodTrees.com Fishing Products are made in the U.S.A. and are constructed of 6061 aluminum. We also offer a lifetime guarantee on all our products.