Stock Number JT9-441310 Bar Hole Size (In.) 11/16 Base Diameter (In.) 5-1/4 Base Size (In.) 10-5/8 x 7-3/16 Head Diameter (In.) 3-1/16 Height Closed (In.) 11-1/2 Height Extended (In.) 17-1/2 Load Capacity (Tons) 10 Model Number SJ-10T Prop 65 Cancer and Reproductive Harm Screw Size (OD x L) 1-1/2 x 8-3/8 Weight (Lbs.) 16