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Part number: 400-8530
Product Details
ARP 400-8530 Cylinder Head Fasteners
Products specifications
Hardened Yes
Inside Diameter Chamfer Yes
Material Stainless Steel
Quantity Sold individually.
Size (ID/OD) 5/16 / 0.625
Thickness .120?
Washer Finish Polished
Washer Inside Diameter (in) 0.313 in.
Washer Inside Diameter (mm) 7.950 mm
Washer Material Stainless steel
Washer Outside Diameter (in) 0.625 in.
Washer Outside Diameter (mm) 15.875 mm
Washer Thickness (in) 0.120 in.
Washer Thickness (mm) 3.048 mm
Washer, w/ Chamfer
Single Piece

A true high performance washer from ARP, available in a variety of sizes and thickness, and with or without I.D. (inside diameter) chamfers. All are constructed from premium chrome moly and are parallel-ground, hardened, and finished in black oxide. Our 3/8 I.D. washers, for example, come in four different sizes (O.D.) and different thicknesses. Special connecting rod washers are available, as are some of the more popular metric sizes. All of the washers are available individually, with most of them also
offered in handy 2-piece and 10-piece packages. Build up an inventory of these premium quality washers so you wont get caught short when the need arises.

Reviews
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A
So far so good
0
Decent shipping and definetly the lowest prices. Found a new grille for my truck 50 dollars lower than any other website.
W
Great prices. OK service. My order shipped 5/6 days after placing my order...Granted 2 of those days were weekend days. I asked were it was shipping from and was told Illinois. Turns out it's coming from Cali. They did bump my order up to ship UPS 2day. Nice!
T
Extremely fast shipping - shipped the next business day and I was notified via email about everything.  Also, VERY good pricing on the products AND shipping.  Thanks!
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