


1/4"-20 Hex Nylon Insert Lock Nut (NM/NE) Series - Solid Brass
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
1/4"-20 Hex Nylon Insert Lock Nut (NM/NE) Series - Solid BrassProduct Details : 1 4" 20 Hex Nylon Insert Lock Nut (NM NE) Series Solid Brass Product Type: Hex Nylon Insert Lock Nut Bolt Diameter Size: 1 4" Thread Count (Pitch TPI): 20 Thickness: 0. 298 to 0. 328 in Thread Type: Coarse Imperial Thread Direction: Right Hand Thread Tool to use: 7 16" Material(s): Brass Steel Grade: Solid Brass Thread Fit: Unified Standard Class 2B Insert Maximum Temperature: 250 F Standards and Certifications: NM and NE Standard
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- Final sale items are not eligible for returns or exchanges.
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Product Reviews
★★★★★ 5
Well made. Easy install.
Size: Standard--black, Size: Standard--black
These were easy to install. All the hardware was included. They look good. Seems well made.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 4, 2026
★★★★★ 5
Sturdy solution
Size: Standard--black
I needed a way to mount rear speakers and this was the solution. They're sturdy and adjustable to fit reasonably sized speakers. They also pivot up and down and swivel so really perfect.
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Reviewed in the United States on April 18, 2026
★★★★★ 5
Works good
Size: 500 A
Works good of 0 gage wiring
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Reviewed in the United States on May 7, 2024
★★★★★ 5
Not all 100-500ah fuses are the same size as the holder you may have and vise versa
Size: 500 A
Better than most and best to use ring terminal like this
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Reviewed in the United States on September 7, 2023
★★★★★ 4
Good job .
Size: 500 A
Product is working as it should so far .
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Reviewed in the United States on April 19, 2026