8 mm.(3/4"-16)M - 9/16"MPM 1500 Bar Product description Adapter various applicationsConnections : 8 mm.(3/4"-16)M Type M - 9/16"MP maleDimensions : Hex 7/8"x 2,187" ( ± 55,5 mm.)Material : st. steelPart number : 21-007-004