8.000" outside diameter 18 thread quantity per inch second set of four mounting hole 0.625 in. dia, unthreaded paint surface treated round unf thread series
8.000" outside diameter 1/4-28 unf-2b thd hole on center of plate, 0.062 in.dia hole located on vertical center line ay 3.000 in.from horizonntal center line; raised surface feature:included;