Stock Number JT9-441315 Bar Hole Size (In.) 13/16 Base Diameter (In.) 6 Base Size (In.) 10-5/8 x 7-3/16 Head Diameter (In.) 3-1/2 Height Closed (In.) 13-13/16 Height Extended (In.) 15-13/16 Load Capacity (Tons) 15 Model Number SJ-15T Prop 65 Cancer and Reproductive Harm Screw Size (OD x L) 1-5/8 x 10-1/2 Weight (Lbs.) 23