Jergens 25101 Fixture Jacks; Serrated: Yes; Body Diameter (Inch): 5/8; Body Height (Inch): 1-3/16; Thread Size: 3/8-16; Stem Diameter (Inch): 1/4; Minimum Base of Flange To Tip (Inch): 9/16; Maximum Base of Flange To Tip (Inch): 1-1/2; Body Material: