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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23
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Description
ARP Special Purpose Washers .313 in. I.D., .625 in. O.D., Set of 10 # 400-8550ARP Special Purpose Washers . 313 in. I. D., . 625 in. O. D., Set of 10 # 400 8550 Washers, Flat, Stainless Steel, Polished, . 313 in. I. D., . 625 in. O. D., Set of 10 Washer Outside Diameter (in): 0. 625 in. Washer Outside Diameter (mm): 15. 875 mm Washer Inside Diameter (in): 0. 313 in. Washer Inside Diameter (mm): 7. 950 mm Washer Thickness (in): 0. 120 in. Washer Thickness (mm): 3. 048 mm Washer Material: Stainless steel Washer Finish: Polished
ARP Special Purpose Washers .313 in. I.D., .625 in. O.D., Set of 10 # 400-8550Washers, Flat, Stainless Steel, Polished, .313 in. I.D., .625 in. O.D., Set of 10
Washer Outside Diameter (in):0.625 in.
Washer Outside Diameter (mm):15.875 mm
Washer Inside Diameter (in):0.313 in.
Washer Inside Diameter (mm):7.950 mm
Washer Thickness (in):0.120 in.
Washer Thickness (mm):3.048 mm
Washer Material:Stainless steel
Washer Finish:Polished
Inside Diameter Chamfer:Yes
Hardened:No
Quantity:Sold as a set of 10.
Hardened ARP Special Purpose washers are parallel-ground from premium chromoly. They are available in a variety of sizes and thicknesses for use on virtually any application. Special connecting rod washers are available, as are some of the popular metric sizes. Build up your supply so you don't get caught short when the need arises
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 29 reviews
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Product Reviews
★★★★★ 5
Fantastic pillows
Color: Blue, Size: Standard(1 Pack)-20'*26'
Fantastic pillows----never get headaches like others
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Reviewed in the United States on April 29, 2026
★★★★★ 5
Recommend this product
Color: Blue, Size: Queen(2 Pack)-20'*30'
I bought these for my boyfriend who is a hot sleeper. They are super thick & comfortable. The pillow stays cool & has a great texture. They didn’t have a bad smell. Bought these 3 years ago & they are still like brand new, durable
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Reviewed in the United States on May 11, 2026
★★★★★ 3
Good, but not life-changing
Color: Blue, Size: Queen(2 Pack)-20'*30'
These pillows are decent but not amazing. I like that they’re adjustable and come with extra fill, so you can make them softer or firmer depending on how you sleep. The cooling side feels nice at first, but it doesn’t stay super cool all night. They’re comfortable enough, but not a huge upgrade from regular pillows. Good, just not life-changing.
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Reviewed in the United States on February 26, 2026
★★★★★ 5
Qutool double sided cooling pillows
Color: Blue, Size: King(2 Pack)-20'*36', Color: Blue, Size: King(2 Pack)-20'*36'
After letting the pillows sit for 12 hrs they puffed up and feel great
Thus far satisfied with our purchase
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Reviewed in the United States on May 6, 2026
★★★★★ 5
It works! Quality pillow.
Size: Standard (1 Count), Color: Original White (Cooling)
This does actually provide a cooling effect, and it's very comfortable! The accompanying literature is helpful too. I believe this to be a quality pillow for the price.
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Reviewed in the United States on June 2, 2026