ARP Valve Cover Fastener - 6 mm Male Thread - 2.755" Long - 12 Point Head - Washers Included - Chromoly - Black Oxide - GM LS-Series - (Set of 8) 3370097 1999-2018 Ford F-350 Super Duty

1999-2018 Ford F-350 Super Duty

1971-1972 Chevrolet Bel Air

1975-1981 Pontiac Catalina

Overall length is 12" and outside diameter is 2"

More area and smoother transitions from the inlet to the outlet

ARP Valve Cover Fastener - 6 mm Male Thread - 2.755" Long - 12 Point Head - Washers Included - Chromoly - Black Oxide - GM LS-Series - (Set of 8) 3370097 1999-2018 Ford F-350 Super DutyProduct Description: Valve Cover Fastener Bolt 6 mm Male Thread 2. 755 in Long 12 Point Head Washers Included Chromoly Black Oxide GM LS Series Set of 8 Since 1968, ARP is the fastener of champions and the world leader in fastener technology.