Received proper sized bolts from Aircraft Spruce and installed the Jabiru 3300 motor mount. Used ANR-33A bolts on the two lower mount points, and AN5-32A bolts on the two upper mount point. These gave proper threads past the end of the nut with only one washer and had the proper grip length.
Lower mounting point needed an AN5-33A bolt for proper grip length.
Upper mounting point needed an AN5-32A bolt for proper grip length.
