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Part number: 200-8408
Product Details
ARP 200-8408 Cylinder Head Fasteners
Products specifications
Hardened No
Inside Diameter Chamfer No
Material Black Oxide
Quantity Sold individually.
Size (ID/OD) 1/4 / 9/16
Thickness .063in
Washer Finish Black oxide
Washer Inside Diameter (in) 0.250 in.
Washer Inside Diameter (mm) 6.350 mm
Washer Material Steel
Washer Outside Diameter (in) 0.563 in.
Washer Outside Diameter (mm) 14.300 mm
Washer Thickness (in) 0.063 in.
Washer Thickness (mm) 1.600 mm
General Purpose Washer
Single Piece

Quality washers for many applications, such as attaching accessories, chassis components, etc. They are not of the hardness required for use on cylinder heads, mains and connecting rods. Available in black oxide and stainless steel. Stainless demonstrates excellent corrosion resistance. Washers have over-sized I.D. (inside diameter) to clear most under-bolt head radii. Available for 1/4, 5/16, 3/8, 7/16, 1/2 and 10mm shank bolts and studs.

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Site use was easy, and product shipped promptly after ordering.  Price was the best I could find, would use this business again.
Lowest price on EBC brakes for my Subaru. Good speed on processing.
First I found Autoplicity through The Find, they already had the item discounted, other than all the other online stores where you needed to search for coupon codes. Then the transaction was very simple, they accepted PayPal which was the payment method I wanted to use.
I'm very happy with my purchase and the service I got from Autoplicity.
Ordered a CAI kit and Autoplicity had the lowest price.  They're website didn't correctly match my vehicle to the product and it took a few days to ship.  They're support was friendly and quick when I emailed them about the delay.
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