Jet, 15 Ton Capacity, Screw Jack , Model #SJ-15T, Closed Height 13-3/4", Extended Height 21", Screw Size 1-5/8" x 10-1/2", Bar Hole Size 13/16", Contractor Quality Mechanical Jack For All Purpose Lifts & Supports, Holds Heavy Loads Indefinitely, Will Not Creep, Heavy Duty Bell Shaped Cast Base, Easy To Carry & Position With Built In Handle, Turning Bar Not Included, True Value Item #440303, 5 Year Warranty.