American Presto - Wisdom 20-SJ10-1 10 Ton Screw Jack
Screw Size 1-1/2" x 8-3/8"
Bar Hole 11/16"
Closed Height 11"
Extended Height 17-1/2"
Corrugated-topped steel screws turn easily under load.
Semi-steel base is built to sit firmly in place without slipping.
Easy to carry with built-in handle.
Acme type threads.