This Ductile hanger pendulum has an oil-less bronz bushing for long wear on hinge pin bolt.
Base dimensions 5 1/8" L x 2 7/8" W - Four 7/16" holes - 3 3/4" OC Length & 1 1/2" OC Width
This hanger was designed for use when laminated 2x material is used for overhead beam. 4 hole pattern allows for heavy lag screw or bolt fastening in each board. Can also be used on 4x overhead beam.(Mounting bolts not included.)