M3 Nylon Insert Hex Lock Nuts 120 Pack Self Locking Carbon Steel With 5.5mm Hex Size And M3 Pitch 0.5mm In Plastic Box Perfect For RC Cars Bikes Pedals And 3D Printer Projects

Refined M3 nylon insert lock nuts in a 120-pack for projects
✔️ M3 nylon insert lock nuts, 0.5mm pitch, 4mm tall, 5.5mm hex

Small fasteners with nylon inserts that lock bolts in place, delivering reliable anti-loosening performance in tight spaces. Ideal for RC cars, bikes, pedals, 3D printers, and DIY projects.

✅ 120 pcs in a plastic storage box for easy access
✅ M3 size, 0.5mm pitch, 4mm tall (0.157in), 5.5mm hex (0.217in), thread Ø 3mm (0.118in)
✅ Carbon steel with black zinc coating for corrosion resistance
✅ Nylon insert provides self-locking action to resist loosening under vibration

💡 What is a nylon insert lock nut used for in high vibration mechanical assemblies? This handy fastener helps keep fasteners tight in hobby and workshop setups.

• Maintains preload and resists loosening in vibration-heavy assemblies
• Ideal for RC cars, bikes, pedals, and 3D printer projects
• Durable carbon steel with black zinc coating resists corrosion
• Nylon insert provides secure locking without tools