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Coarse 3/8 Nylon Insert Lock Box/100
Coarse 3/8 Nylon Insert Lock Box/100
Coarse 3/8 Nylon Insert Lock Box/100
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Coarse 3/8 Nylon Insert Lock Box/100

Marsoni M251S
Sale price$13.87
Pay 4 payments of $3.47 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Coarse 3/8 Nylon Insert Lock Box/100Overview The Coarse 3 8 Nylon Insert Lock Nut (03651) is designed for hardware fastening applications requiring resistance to loosening under vibrations and torque. Specification Value MPN 03651 Brand Midwest Fastener Corp Thread Size 3 8 Coarse Insert Type Nylon Package Quantity Box of 100 Weight 3. 91 lb Package Dimensions 10. 35 x 3. 67 x 3. 39 in Color Gray Technical Features Nylon insert locking mechanism: The embedded nylon collar creates
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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]
  • Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 2295 reviews
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Product Reviews
E
Verified Purchase
Eduin Rodriguez
Phoenix, US
★★★★★ 5
Clean and Safe Wiring
Installed this distribution block in my home car audio system and it works great. It helped organize my power wiring and made the setup look much cleaner. The connections feel secure and the fuse protection is a nice bonus. Check my videos to see the real setup and testing.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
J
Verified Purchase
Jay Boz
Alexandria, US
★★★★★ 4
Great product! Slightly longer than I’d like to remove the ferrules
Great product works as described, mounted without any problems, only issue I ran into was removing the pre inserted ferrules from the block to utilize a larger gauge wire. Outside of that it’s a great and definitely would purchase again
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 1, 2025
T
Verified Purchase
Tyson
Los Angeles, US
★★★★★ 5
Solid Power Block — Easy Install & Works Great
This fused power distribution block was exactly what I needed for my car audio setup. It’s sturdy, easy to install, and keeps my wiring clean and organized. The fuses fit tight, the cover snaps on well, and everything feels secure. Perfect for amps or accessory add-ons. Great quality for the price!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 9, 2025
M
Verified Purchase
Marcus
Bozeman, US
★★★★★ 5
Gets the job done
Perfect for running 2 amps
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 27, 2026
P
Verified Purchase
Plofty
New York, US
★★★★★ 5
Clean product
Fast shipping and nice product
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 9, 2026

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