900 lbs capacity per pair Features grease zerk fitting to keep the internal ball bearings lubricated Total Hinge Measures: 6-7/8" x 1-3/4" 3-1/8" x 1-1/2". 3/8" Thick Barrel diameter is 1-3/8" 8 Hinges per order (4 pairs) This 7" Heavy Duty Barrel Hinge has 3-1/8" x 1-1/2" weld plates. Total hinge measurements are 6-7/8" x 1-3/4" with a barrel diameter of 1-3/8" and weighs 3 lbs 9.3 oz. The total capacity per pair is 900 lbs. This hinge features grease zerk fitting to keep the internal ball bearings lubricated for the best performance. This weld-on barrel hinge has a quality matte black metal powder coating finish. We recommend using multi-purpose grease once every two years for a smooth effortless operation.