Longer Crank Pulley Bolt F4R Engines M12

This is a longer Crank Pulley Bolt for F4R Engines M12, consisting of a 10.9 grade flanged hex bolt 60mm long, with a 10mm thick washer giving an effective length of 50mm.  This is for use with our 4PK and 6PK crank pulleys as they have a thicker design and a longer bolt is required.