★★★★★ 5
Very good filter
Size: CA12290-Premium
Very good filter
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 3, 2025
5/16-18 x 3/4 Coarse Hex Cap - Grade 5 Box/100
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
5/16-18 x 3/4 Coarse Hex Cap - Grade 5 Box/100Overview The 5 16 18 x 3 4 Coarse Hex Cap Screw (00271) is designed for hardware fastening applications requiring a wrench driven hexagonal head fastener. Supplied by Midwest Fastener Corp and sold in a contractor friendly box of 100, this Grade 5 hex cap screw delivers consistent performance for general purpose structural and mechanical assembly tasks. Technical Specifications MPN 00271 Brand Midwest Fastener Corp Size 5 16 x 3 4 in. Thread 5 16 18
Quick Dispatch:
Your 5/16-18 x 3/4 Coarse Hex Cap - Grade 5 Box/100 orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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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.
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4.0 ★★★★★
Based on 1422 reviews
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Product Reviews
★★★★★ 3
Not 99.9 %
Size: CA12290-Premium
Only 98% efficient. Says 99.9 in the ad. There is a huge difference between those two efficiencies.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 8, 2026
★★★★★ 5
Accord
Size: CA12290-Premium, Size: CA12290-Premium
Fit was perfect on 2018 accord, delivery fast and packaging intact.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 18, 2025
★★★★★ 5
Prefect fit
Size: CA12290-Premium, Size: CA12290-Premium
Excellent product! OEM Replacement. If you are buying for horse power gains. You will not really notice any difference
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 18, 2025
★★★★★ 5
K and N is the best
Size: CA12290-Premium
In my opinion, you can’t buy a better air filter. Been buying them for all my cars since the 1990s.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 8, 2024
