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#8 Countersunk Finishing Washer - Stainless Steel 18-8
#8 Countersunk Finishing Washer - Stainless Steel 18-8
#8 Countersunk Finishing Washer - Stainless Steel 18-8
#8 Countersunk Finishing Washer - Stainless Steel 18-8
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#8 Countersunk Finishing Washer - Stainless Steel 18-8

Marsoni M251S
Sale price$12.91
Pay 4 payments of $3.23 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
#8 Countersunk Finishing Washer - Stainless Steel 18-8Product Details : #8 Countersunk Finishing Washer Stainless Steel 18 8 Product Type: Countersunk Finishing Washer Bolt Diameter Size: n 8 Outside Diameter: 0. 518 to 0. 543 in Inside Diameter: 0. 18 to 0. 22 in Height: 0. 086 to 0. 11 in System of Measurement: Imperial Material(s): Stainless Steel 18 8 For any information about products, please contact us. *Photos for reference purposes only.
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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]
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4.3 ★★★★★
Based on 2199 reviews
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Product Reviews
C
Verified Purchase
Cody Mills
Fort Morgan, US
★★★★★ 5
Will buy again!
Configuration: 4-Stroke, Size: 1 GA, Configuration: 4-Stroke, Size: 1 GA
This is my second time using this oil to service my 2022 Mercury 90 outboard. Excellent oil! Engine runs extremely smooth. The jug was very easy to pour from. No smoke from the engine.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 18, 2026
A
Verified Purchase
albert smart
Pawtucket, US
★★★★★ 5
Good
Configuration: 4-Stroke, Size: 1 GA, Case of 3
Good
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
M
Verified Purchase
mattw
Boise, US
★★★★★ 4
Oily situation lol
Configuration: 4-Stroke, Size: 1 GA
Honestly how do you write a review of this product? I would have to run tests for years on multiple oils on various engines to do so. The value was good however and shipping was great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 31, 2025
P
Verified Purchase
Peter Schott
Houston, US
★★★★★ 5
Use the best oil to protect your investment
Configuration: 4-Stroke, Size: 1 GA
Great product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 30, 2025
S
Verified Purchase
Sean R.
New York, US
★★★★★ 5
Excellent quality
Great quality kit
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 24, 2025

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