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ARP 200-8585 Chrome Moly Hardened Washers with Chamfer - 10-Piece

Part of: ARP Chrome Moly Hardened Washers with Chamfer

Other options in this family: ARP 200-8557 ARP 200-8534 ARP 400-8539 ARP 200-8587 ARP 400-8550

Manufacturer

Picture for manufacturer ARP

Part Number

200-8585
9 reviews
Sale Price

$8.98

In Stock (10+)

delivery box

Usually delivered within 2 days

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Live-in-stock inventory

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Fitment guaranteed

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Product Details

ARP 200-8585 premium hardened washers are engineered for high-performance engine applications where precise fastener load distribution is critical. Each washer is precision-manufactured from premium chrome moly steel and heat-treated for maximum strength and durability.

Key Features:

  • Constructed from premium chrome moly steel for superior strength
  • Parallel-ground surfaces ensure even load distribution
  • Heat-treated and hardened for extreme durability
  • Features inside diameter (I.D.) chamfer for proper fastener seating
  • Black oxide finish provides corrosion resistance
  • 10-piece package for multiple installations

These precision washers are essential components in high-performance engine builds, particularly when used with ARP head studs and bolts. The chamfered inside diameter allows proper seating against fastener heads and nuts, while the hardened, parallel-ground construction prevents washer deformation under high clamping loads. The black oxide coating provides a professional finish and helps resist corrosion in demanding automotive environments.

Products specifications

Hardened

Yes

Inside Diameter Chamfer

Yes

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

product was as shown

It was very easy to order. Only issue was not given a dilevery date.

Awesome

Great price and fast.

Good fast delivery

Very competitive prices and fast FREE shipping! Will do business with Autoplicity again!

Prices were very fair, had to check back a few times to the listing to determine if item was sold in pairs and/or individually. Overall however the product looks good.

I bought gauges from here and it was the best price around. They shipped it quickly and it should be here soon. Ill buy from here again.

Quick easy checkout.

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