It is machined from billet heat treated steel using 3/8-24 threads with a 12 pt. nut Tig-welded to the top to allow the user an easy way to tighten or loosen. Jack screw is 4.00" long under the head of the nut, .250" tip is to register into jack screw block.
This jack screw is made from billet steel and is heat treated to grade 8 specs. for longevity.