New ARP fuel pump mounting bolts.  This is a 4 pc set, 2 to mount the pump to the block and 2 small ones for the adapter plate to the block.  These do not work on block off plates alone.  These are 180,000 PSI polished stainless with 12-pt heads.  Fits all Gen I small block chevrolet engines : 302, 305, 307, 327, 350, 400.