Summit Racing SpeedCard - learn how to get 10% back up to $100

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Moroso Head Bolt Washers

4.5 out of 5 stars 4 Customer Reviews

Not your ordinary hardware-store variety of washers. Moroso head bolt washers are designed for the racer. They're machined from tough 4130 chromoly steel, heat-treated to proper hardness, and parallel-ground so that stress loads are more evenly distributed and torque readings are more accurate. They can also be used on main bearing caps, rocker arm stands, and other engine components and can be used over and over again.

Results 1 - 2 of 2

Head Bolt Washers, Chromoly, Black Oxide, .438 in. Inside Diameter, .120 in. Thick, Set of 34

Part Number: MOR-38300

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

Head Bolt Washers, Chromoly, Natural, .500 in. Inside Diameter, Set of 30

Part Number: MOR-38310

Not Yet Reviewed

Estimated Ship Date: Jan 8, 2026 if ordered today

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Estimated Ship Date: Jan 8, 2026 if ordered today

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