Stock Number JT9-441305 Bar Hole Size (In.) 9/16 Base Diameter (In.) 4-1/2 Base Size (In.) 4-15/16 x 7 Head Diameter (In.) 2-3/8 Height Closed (In.) 9-1/2 Height Extended (In.) 13 Load Capacity (Tons) 5 Model Number SJ-5T Prop 65 Cancer and Reproductive Harm Screw Size (OD x L) 1 x 6 Weight (Lbs.) 9