★★★★★ 5
As advertised
Perfect fit in my 2015 F150.
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Reviewed in the United States on February 28, 2026
3/8"-16 Acorn Cap Nut - Stainless Steel 18-8
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
3/8"-16 Acorn Cap Nut - Stainless Steel 18-8Product Details : 3 8" 16 Acorn Cap Nut Stainless Steel 18 8 Product Type: Acorn Cap Nut Thread Size: 3 8" 16 Bolt Diameter Size: 3 8" Thread Count (Pitch TPI): 16 Thread Type: Coarse Imperial Material(s): Stainless Steel 18 8 Thread Fit: Unified Standard Class 2B For any information about products, please contact us. *Photos for reference purposes only.
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Exchange/Return Notes
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4.3 ★★★★★
Based on 870 reviews
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Product Reviews
★★★★★ 1
Too restrictive!
If you like air flow do not buy this filter. I put it in my 2020 Super duty and had very little air coming out with the fan as high as it would go. Stopped and bought the standard Microguard from Orielly's. I changed it in the parking lot and Bam!!! back to blowing my hat off!
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Reviewed in the United States on May 5, 2026
★★★★★ 5
Great price
Both filters fit and worked and had a great price.
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Reviewed in the United States on March 15, 2026
★★★★★ 5
Better then oem
Great product quality is definitely a plus had no issues. Been buying these for 3 years.
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Reviewed in the United States on November 19, 2025
★★★★★ 5
Quality filters
Perfect fit, no issues with the installation of these filters.
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Reviewed in the United States on March 8, 2026
