Screw, 13296, used for 5600 Back Cover ( standard housing, not "L" Designer housing ),
Also, this type screw is used for the Main Piston to Main Gear Shaft ( 13170 ) connection
And two are used to secure the metal motor mounting plate ( 13175 ) to the plastic housing.
Note: washer, 13363, not included with this screw, but both the screw and washer come with new Main Piston Assemblies 60102-xx ( 5600 Main Pistons ).
Cross references to old part number 18564. 13296 is the new replacement.