Holden V8 253, 304, 308 Intake Bolts - Black Finish 12 Point Head, Pack of 14

When installing a new intake manifold it is recommended to upgrade your intake bolts, some standard intake manifold won't work depending on aftermarket intake manifolds. These Aeroflow intake bolts are made from Grade 8 steel for strength. They are zinc coated for protection and long-lasting durability. Each 12-point head is designed to take a 3/8" spanner size. This compact 12-point head is ideal for use where space is minimal on most aftermarket intake manifolds compared to the factory bolts with a larger head. Each set includes special extra thick flat washers for optimum clamping pressures to ensure a sure seal.

Sold as a set of 14.

Thread size : 3/8"-16
Under Head Length: 38.40mm
Head Diameter: 13.60mm
Shank Diameter: 9.30mm
Shank Length: 8mm

Washer Outside Diameter: 18mm
Washer Inside Diameter: 10.05mm
Washer Thickness: 3mm