---
product_id: 58667263
title: "100Pcs M3 x 0.5mm Lock Nuts - 304 Stainless Steel Self-Lock Nylon Inserted 3mm Nylock Nuts for RC Model, 3D Printer"
brand: "binifimux"
price: "¥2497"
currency: JPY
in_stock: true
category: "Binifi Mux"
url: https://www.desertcart.jp/products/58667263-100pcs-m3-x-0-5mm-lock-nuts-304-stainless-steel
store_origin: JP
region: Japan
---

# 100 pcs M3 x 0.5mm precision lock nuts Nylon-inserted self-locking for vibration-proof hold 304 stainless steel corrosion-resistant strength 100Pcs M3 x 0.5mm Lock Nuts - 304 Stainless Steel Self-Lock Nylon Inserted 3mm Nylock Nuts for RC Model, 3D Printer

**Brand:** binifimux
**Price:** ¥2497
**Availability:** ✅ In Stock

## Summary

> 🔧 Lock it down with confidence—precision meets durability in every twist!

## Quick Answers

- **What is this?** 100Pcs M3 x 0.5mm Lock Nuts - 304 Stainless Steel Self-Lock Nylon Inserted 3mm Nylock Nuts for RC Model, 3D Printer by binifimux
- **How much does it cost?** ¥2497 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/58667263-100pcs-m3-x-0-5mm-lock-nuts-304-stainless-steel)

## Best For

- binifimux enthusiasts

## Why This Product

- Trusted binifimux brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Bulk Precision Pack:** 100 high-grade M3 lock nuts in a sleek storage case—always ready, never lose track.
- • **Compact & Compatible:** Designed with exact 3mm thread and 5.5mm hex size for seamless integration with standard tools.
- • **Effortless Installation:** Smooth threading and self-locking design make assembly quick and secure—save time, build smarter.
- • **Industrial-Grade Durability:** Crafted from rust-proof 304 stainless steel to withstand demanding RC and 3D printing projects.
- • **Vibration-Resistant Locking:** Nylon insert ensures your fasteners stay tight under stress—no loosening, no worries.

## Overview

This set includes 100 M3 x 0.5mm lock nuts made from premium 304 stainless steel with nylon inserts for self-locking performance. Ideal for RC models and 3D printers, these nuts resist rust and vibration, ensuring secure fastening. Packaged in a convenient storage case, they fit standard 5.5mm hex tools and offer reliable, long-lasting durability for professional-grade projects.

## Description

BinifiMux 100Pcs M3 x 0.5mm Lock Nuts - 304 Stainless Steel Self-Lock Nylon Inserted 3mm Nylock Nuts for RC Model, 3D Printer: desertcart.com: Industrial & Scientific

## Features

- [Package] Contains 100 pieces M3-0.5mm lock nuts,coming with one plastic storage case which perfect for store for long time usage
- [Dimensions] The thread is metric 3mm with 0.5mm pitch and a total height of 4mm, hex height is about 2.4mm, angle to angle distance is 5.3mm, fit 5.5mm hex spanner, you could check size details by picture 2 more clearly
- [High-Quality Stainless Steel] Crafted from high-quality stainless steel with plain finish, this acorn nut is rust-proof, tough, and durability
- [Easy Installation] This binifiMux lock nut is easy to install on screw ends for fastening bolts/ screws by thread inserted into nylon part
- [Warranty and Service] Committed to best service to you if you have issues about units

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B075ZZW7VL |
| Best Sellers Rank | #76,797 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #144 in Locknuts |
| Brand | binifiMux |
| Color | Silver |
| Compatible Groove Diameter | 3 Millimeters |
| Customer Reviews | 4.8 out of 5 stars 928 Reviews |
| Drive Style | External Hex |
| Exterior Finish | Plain |
| Fastener Type | Lock |
| Finish Types | Unfinished |
| Grade Rating | Grade 8.8 / A2-70 |
| Inside Thread Size | M3 |
| Item Diameter | 3 Millimeters |
| Manufacturer | binifiMux |
| Material | Nylon, Stainless Steel |
| Material Type | Nylon, Stainless Steel |
| Metal Type | Stainless Steel |
| Number Of Items | 100 |
| Number of Pieces | 100 |
| Outside Diameter | 3 Millimeters |
| Part Number | XXF-117 |
| Screw Head Style | Hex |
| Set Name | binifiMux M3 Lock Nut Set (100 Piece) |
| Size Name | M3 |
| Thread Class | ISO |
| Thread Coverage | Fully Threaded |
| Thread Size | M3 x 0.5 |
| Thread Style | Right Hand |
| Thread Type | Metric 3mm |
| UPC | 613852252062 |
| Unit Count | 100.0 Count |

## Product Details

- **Color:** Silver
- **Exterior Finish:** Plain
- **Fastener Type:** Lock
- **Material:** Nylon, Stainless Steel
- **Thread Size:** M3 x 0.5

## Images

![100Pcs M3 x 0.5mm Lock Nuts - 304 Stainless Steel Self-Lock Nylon Inserted 3mm Nylock Nuts for RC Model, 3D Printer - Image 1](https://m.media-amazon.com/images/I/918updXAHrL.jpg)
![100Pcs M3 x 0.5mm Lock Nuts - 304 Stainless Steel Self-Lock Nylon Inserted 3mm Nylock Nuts for RC Model, 3D Printer - Image 2](https://m.media-amazon.com/images/I/51-D1sXOKRL.jpg)
![100Pcs M3 x 0.5mm Lock Nuts - 304 Stainless Steel Self-Lock Nylon Inserted 3mm Nylock Nuts for RC Model, 3D Printer - Image 3](https://m.media-amazon.com/images/I/71yqr7NV6eL.jpg)
![100Pcs M3 x 0.5mm Lock Nuts - 304 Stainless Steel Self-Lock Nylon Inserted 3mm Nylock Nuts for RC Model, 3D Printer - Image 4](https://m.media-amazon.com/images/I/71rguncEhaL.jpg)
![100Pcs M3 x 0.5mm Lock Nuts - 304 Stainless Steel Self-Lock Nylon Inserted 3mm Nylock Nuts for RC Model, 3D Printer - Image 5](https://m.media-amazon.com/images/I/71MHmCzTtwL.jpg)

## Questions & Answers

**Q: Can anyone tell me whether or not these are endorsed by Dee?**
A: sorry no

**Q: Will these hold up in a engine bay? I need them for my emblem I am reinstalling.**
A: I dont see why not. They are 304 stainless steel...

**Q: Does anyone have the height, and width (flat to flat part) of these?**
A: width of flat to flat is 6mm. 
height is 4mm.

**Q: Will these work with m3x55mm screws?**
A: yes it fit coz thread is metric 3mm with same pitch 0.5mm.

## Frequently Bought Together

- binifiMux 100Pcs M3 x 0.5mm 304 Stainless Steel Self-Lock Nylon Inserted Hex Lock Nuts, Self Clinching Nuts
- uxcell 100Pcs M3x6mmx0.5mm Stainless Steel Metric Round Flat Washer for Bolt Screw

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-07-17*