M3 Nylon Inserted Lock Nuts Set, 115 Pcs Self Locking Hex Nuts With Nylon Insert, Metric M3 0.5mm Thread, 4mm Height, 5.5mm Hex Width, Black Carbon Steel, Packaged In Clear Box For Easy Sorting And Safe Storage

Premium M3 Nylon Inserted Lock Nuts 115 Pc Set
✔️ Thread M3×0.5, 4mm tall, 5.5mm hex, black oxide finish

These M3 nylon-inserted lock nuts are self-locking fasteners designed to prevent loosening under vibration. They’re commonly used in electronics, RC models, 3D printers, small appliances, and general hobby or light industrial assemblies. Packed in a clear box for easy sorting and storage.

✅ Thread: M3, pitch 0.5 mm, diameter 3 mm
✅ Total height: 4 mm
✅ Hex width: 5.5 mm
✅ Self-locking nylon insert prevents loosening
✅ Material: carbon steel with black oxide finish
✅ Packing: 115 pcs in clear box for sorting and safe storage

💡 What is a nylon insert lock nut used for and where is it commonly applied? This handy fastener helps secure assemblies subject to vibration.
- handy for electronics, RC models, 3D printers, and small appliances
- provides vibration resistance and stops loosening under dynamic loads
- works with standard M3 bolts for quick upgrades and reliable repairs