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ARP 200-8584 Chrome Moly Hardened Washers - 10-Piece Set

Part of: ARP Chrome Moly Hardened Washers

Other options in this family: ARP 200-8530 ARP 200-8592 ARP 200-8554 ARP 200-8688 ARP 200-8507

Manufacturer

Picture for manufacturer ARP

Part Number

200-8584
6 reviews
Sale Price

$9.96

4 left at this price

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Usually delivered within 2 days

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Product Details

These precision-ground washers feature a no-chamfer design with a 3/8-inch inside diameter, providing consistent clamping force and load distribution for cylinder head fasteners and other critical engine components.

Key Features:

  • Premium chrome moly steel construction for superior strength and durability
  • Parallel-ground surfaces ensure even load distribution
  • Hardened to resist deformation under high clamping loads
  • Black oxide finish provides corrosion resistance
  • No inside diameter chamfer design
  • 3/8-inch inside diameter for standard bolt applications
  • Convenient 10-piece package

ARP washers are engineered to complement high-performance fasteners by preventing embedment into aluminum components and maintaining proper bolt preload. The precision manufacturing process ensures consistent thickness and parallelism, making them ideal for engine builds where accurate torque values and reliable clamping force are critical.

Products specifications

Hardened

Yes

Inside Diameter Chamfer

No

Material

Black Oxide

Quantity

Sold as a set of 10.

Size (ID/OD)

5/16 / 0.550

Thickness

.120in

Washer Finish

Black oxide

Washer Inside Diameter (in)

0.313 in.

Washer Inside Diameter (mm)

7.950 mm

Washer Material

Chromemoly

Washer Outside Diameter (in)

0.550 in.

Washer Outside Diameter (mm)

13.970 mm

Washer Thickness (in)

0.120 in.

Washer Thickness (mm)

3.048 mm

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good price easy to find part. will see if quality is good when parts arrive.

Wilwood master cylinder was in stock, 40.00 cheaper then Summit! Shipped fast, arrived in two days, very pleased!

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