1/8"x1/4" P4652 SEMI-TUBULAR OVAL HEAD RIVETS (10) for American Flyer Trains AMERICAN FLYER P4652 SEMI-TUBULAR 1/8”x1/4” OVAL HEAD RIVETS (10) Ten semi-tubular, P4652, 1/8”x1/4” (0.125” diameter x 1/4” long) oval head rivets that are used on several applications of American Flyer Trains. These rivets are reproductions. See Jonscoolstuff2013 for more Lionel and American Flyer parts. Some are reproductions and some are original parts.