The most reasonably priced component used on the G3tr Bushmaster 1969 Usa Canada Engine Covers (g3ss-c) ('69-'73) is the Screw-pan-cros,5x10.
With ten applications this Screw-pan Head,6x30 is the most specified part.
A sample from the products for the Engine Covers (g3ss-c) ('69-'73) include: Seal-oil, Screw-pan Head,6x30, Cover-l.h Eng,silver, Screw-pan Head,6x25.