Made of carbon steel with a black zinc-plated finish for high hardness and good corrosion resistance. The built-in nylon insert provides prevailing torque to resist loosening under vibration and repeated load.

Used with M2 bolts/screws (and optionally washers) to securely fasten parts when mechanically joining materials together.

Commonly applied in machinery, instruments, electronic products, 3D printers, RC models, home appliances, furniture, garage projects, and more.

Product Specifications:

Material: Carbon Steel (with Nylon insert)
Finish: Black Zinc Plated
Color: Black
Type: Nylon Insert Self-Locking Hex Nut (Nyloc)
Thread Size: M2
Thread Pitch: 0.4 mm / 0.016"
Width (Across Flats): 4.0 mm / 0.16"
Height: 3.0 mm / 0.12"
Locking Method: Nylon prevailing-torque insert
Recommended Use: General purpose fastening; not suitable for high-temperature environments due to nylon insert