Threaded Insert, Keylocking, Black Phosphate Steel Wall Type: Heavy, Internal / External size: 8-32 X 5/16-18, Thread Class: 2B Internal / 2A ExternalClass 2B Tap Size: 5/8-18, Tap Drill Size: I, Use with Tool: 70582.
A jaw coupler and center spider are used to mount the shaft of a motor or engine to a pump. The bracket is mounted to both the pump and the engine or motor, hence the name "mounting bracket".