Premium Nyloc Lock Nuts DIN 985 Zinc Plated Steel Nylon Insert M3–M24

Secure your assemblies with confidence. These premium nylon-insert lock nuts (Nyloc) deliver reliable, vibration-resistant fastening across a wide range of applications—from automotive and machinery to DIY, construction, and electronics.

Key Features

Vibration-Resistant Security: Nylon insert creates a positive locking action to resist loosening.

Standards Compliant: DIN 985 / ISO 7040 / UNI 7473 – Plastic Insert Locking Nut.

Wide Size Range: M3, M4, M5, M6, M8, M10, M12, M14, M16, M18, M20, M24.

Corrosion Resistant: Zinc plated steel for indoor/outdoor use and exposure to moisture and common chemicals.

Thread Protection & Reusability: Nylon insert helps protect mating threads and allows repeated use.

Performs in Harsh Conditions: Reliable locking performance across extreme temperatures.

Easy to Install: Fits standard metric threads—tighten as usual for a secure, hassle-free hold.

Item Specifics

| Product Type         | Nylon Insert Lock Nut (Nyloc)                              |

| Standards            | DIN 985 / ISO 7040 / UNI 7473                              |

| Material             | Steel                                                      |

| Finish/Plating       | Zinc plated (corrosion resistant)                          |

| Thread Type          | Metric coarse (per DIN 985 size)                           |

| Available Sizes      | M3, M4, M5, M6, M8, M10, M12, M14, M16, M18, M20, M24       |

| Color                | Silver (zinc)                                              |

| Drive/Head           | Hex nut                                                    |

| Reusable             | Yes—nylon insert protects threads                          |

| Applications         | Automotive, machinery, construction, electronics, DIY      |

Why Choose These Lock Nuts?

Trusted locking performance that prevents loosening from vibration and movement.

Durable zinc plating for long-lasting protection in demanding environments.

Nylon insert grips threads firmly without damaging them, supporting repeat assemblies.

Professional-grade quality for both trade and home projects.

Size Guide

Choose your required size (M3–M24) from the drop-down menu.

Select quantity/pack size as needed for your project.

Installation Tips

Match nut size to the corresponding metric bolt/thread.

Start by hand to avoid cross-threading, then tighten with a spanner or socket.

For critical applications, tighten to the appropriate torque for the bolt size/grade.

Nyloc nuts are typically installed with the nylon ring facing outward (last to engage).

Package Contents

Nylon Insert Lock Nuts in your selected size and quantity.

Quality Assurance

Every nut is manufactured to rigorous standards for consistent fit and dependable performance. Order with confidence and upgrade your fastening solutions today.