These round hood bumpers were used on the 250 Scaglietti-built. These truncated cone shpaed hood bumpers were used on the 250 series cars with Scaglietti built bodies. The bottoms of the bumpers are cut so that there is a 1/16″ “press fit” between the bumper and the hood or the trunk when they are closed. These were attached using a trim washer and a slotted flat head sheet metal screw. The P.F. cars used a different piece. Scaglietti Hood Bumpers.