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If you need nuts that don't conduct electricity, won't rust, and hold up in harsh environments, these nylon hex nuts are exactly what you're looking for.
![Kozelo 100pcs Hex Nuts - [M4-0.7] Nylon Hardware Nuts for Machine Repair and Assembly, Electrical Insulation, Standard Metric Coarse Screw Nuts Black Kozelo 100pcs Hex Nuts - [M4-0.7] Nylon Hardware Nuts for Machine Repair and Assembly, Electrical Insulation, Standard Metric Coarse Screw Nuts Black](https://images-na.ssl-images-amazon.com/images/I/41Q8O08T77L._AC_UL495_SR435,495_.jpg)
![100pcs Hex Nuts - [M4-0.7] Nylon Hardware Nuts, Black, UNC 100pcs Hex Nuts - [M4-0.7] Nylon Hardware Nuts, Black, UNC](https://images-fe.ssl-images-amazon.com/images/I/51cKIREDcHL._AC_UL495_SR435,495_.jpg)


They're made from nylon – so they're non-conductive, rust-proof, corrosion-resistant, and they won't oxidize.
That makes them perfect for electronics, marine environments, coastal areas, or any place where metal nuts would just corrode and seize up.


Use them for general assembly, mechanical repairs, agricultural equipment, industrial machinery, or even model construction and chainsaw flywheel maintenance.
They pair with matching M4 bolts and washers – just make sure your bolt matches the thread size.
The standard hexagonal shape means you can use any ordinary wrench or socket.
These are also great for outdoor projects where salt air or moisture is a problem – unlike steel nuts, these won't corrode.
Lightweight too.
Just double-check that M4-0.
7 is the right size for your bolts before ordering.

Tough, reliable, and built for durability.
Good price for a 100-pack, too.

4.9 out of 5