---
product_id: 430231132
title: "AIEX 100pcs 3D Printing Brass Nuts, M3 Threaded Insert Knurled Brass Nuts Female Thread Knurled Heat Embedment Nut for 3D Printing Parts Loptop Automotive Plastic Shell(M3*4.6x5.7mm)"
brand: "aiex"
price: "$42"
currency: NZD
in_stock: true
reviews_count: 13
category: "Aiex"
url: https://www.desertcart.nz/products/430231132-aiex-100pcs-3d-printing-brass-nuts-m3-threaded-insert-knurled
store_origin: NZ
region: New Zealand
---

# Heat resistant >300°C 100pcs bulk pack Precision M3 threading AIEX 100pcs 3D Printing Brass Nuts, M3 Threaded Insert Knurled Brass Nuts Female Thread Knurled Heat Embedment Nut for 3D Printing Parts Loptop Automotive Plastic Shell(M3*4.6x5.7mm)

**Brand:** aiex
**Price:** $42
**Availability:** ✅ In Stock

## Summary

> 🔧 Elevate your 3D prints with brass nuts that mean business!

## Quick Answers

- **What is this?** AIEX 100pcs 3D Printing Brass Nuts, M3 Threaded Insert Knurled Brass Nuts Female Thread Knurled Heat Embedment Nut for 3D Printing Parts Loptop Automotive Plastic Shell(M3*4.6x5.7mm) by aiex
- **How much does it cost?** $42 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/430231132-aiex-100pcs-3d-printing-brass-nuts-m3-threaded-insert-knurled)

## Best For

- aiex enthusiasts

## Why This Product

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

## Key Features

- • **Massive 100-piece set:** Never run out during your 3D printing projects—bulk supply for endless creativity.
- • **Precision M3 threading:** Perfectly sized for seamless integration with your 3D printer parts and accessories.
- • **Knurled for ultimate grip:** Enhanced torque resistance ensures a rock-solid fit every time.
- • **Premium heat-resistant brass:** Withstands temperatures over 300°C to keep your prints flawless under pressure.
- • **Versatile plastic compatibility:** Works flawlessly with PLA, ABS, PETG, and more—ideal for automotive, laptop, and industrial molds.

## Overview

The AIEX 100pcs 3D Printing Brass Nuts are precision-engineered M3 threaded inserts made from durable, heat-resistant brass. Designed for easy heat embedment and injection molding, these knurled nuts provide superior grip and torque resistance, ensuring secure assembly in a wide range of plastics including PLA, ABS, and PETG. Ideal for 3D printing, automotive, and electronic applications, this bulk pack guarantees you never run short on high-quality fastening solutions.

## Description

Specification: Color: brass color Material: quality brass Product Size: about 5.7x3x4.6mm / 0.2x0.1x0.2inch Package details: 100 x knurled brass nut Note: Due to manual measurement, the size and weight may have a certain error. Due to the difference between different monitors, there may be a slight color difference existed.

Review: Good value and as expected quality - Work well for adding high quality holes to 3d prints
Review: Great product - Works like intended. I use a Creality Ender 3V2 for my prints with a 0.4mm nozzle. What I found works best for my prints is a 4.75mm sized hole that's at least 6mm deep to get a good fit. I pressed the nuts in slowly with a soldering iron at 200 degrees Celsius / ~400 degrees Fahrenheit. Super strong connection.

## Features

- Package Content: You will get 100pcs 3D printing brass nuts, super large quantity can meet your needs of connecting numerous 3D printing accessories. Each knurled brass nut measures about 5.7x3x4.6mm / 0.2x0.1x0.2inch, please ensure that the size of the nuts can well match your 3D printer.
- Premium Material: The threaded inserts for 3D printing are made of high quality brass, extremely sturdy, not easy to break or deform, also can withstand high temperature above 300°C / 572°F. Excellent thermal conductivity also makes your 3D printer to work more effectively.
- Easy to Install: The knurled brass nuts can be easily installed into the the tapered holes of 3D printers by heating, also can be molded by injection molding. The 3D printing brass nuts with full knurled patterns can perfectly match with your 3D printers. Practical nuts make your 3D printer work well.
- Good Workmanship: With clean surface and twill thread knurled patterns, the nuts can be installed onto 3D printers and fit perfectly and won't scratch your precious 3D printing parts. The smaller diameter of the front end of the nut allows you insert them into 3D printing hole precisely. Inclined thread knurls increase the torque resistance, so they can be fixed on the 3D printers tightly.
- Wide Application: These m3 threaded insert nuts can be inserted into various plastics, such as PC, PA, PLA, ABS, PETG, etc. Suitable for installing on 3D printers, electrical molding machines, electrical injection molding, automotive or laptop molding plastic shells, etc.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09TNK8GD6 |
| Best Sellers Rank | #121,711 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #187 in Nut Inserts |
| Brand | AIEX |
| Color | brass |
| Date First Available | March 1, 2022 |
| Exterior Finish | Plastic,Brass |
| Fastener Type | Knurled |
| Finish Type | Brass |
| Inside Thread Size | M3 |
| Item Diameter | 5.7 Millimeters |
| Item Weight | 1.41 ounces |
| Manufacturer | AIEX |
| Material | Brass |
| Metal Type | Brass |
| Number of Pieces | 100 |
| Size | M3-5.7mm |
| Thread Size | M 3 |

## Product Details

- **Color:** brass
- **Exterior Finish:** Plastic,Brass
- **Fastener Type:** Knurled
- **Material:** Brass
- **Thread Size:** M 3

## Images

![AIEX 100pcs 3D Printing Brass Nuts, M3 Threaded Insert Knurled Brass Nuts Female Thread Knurled Heat Embedment Nut for 3D Printing Parts Loptop Automotive Plastic Shell(M3*4.6x5.7mm) - Image 1](https://m.media-amazon.com/images/I/71oDRNZ3gFL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good value and as expected quality
*by M***W on January 5, 2025*

Work well for adding high quality holes to 3d prints

### ⭐⭐⭐⭐⭐ Great product
*by V***R on September 23, 2023*

Works like intended. I use a Creality Ender 3V2 for my prints with a 0.4mm nozzle. What I found works best for my prints is a 4.75mm sized hole that's at least 6mm deep to get a good fit. I pressed the nuts in slowly with a soldering iron at 200 degrees Celsius / ~400 degrees Fahrenheit. Super strong connection.

### ⭐⭐⭐⭐⭐ If you do 3D printing.. These are a must have!
*by C***N on August 23, 2023*

When it comes to 3D printing, you can always design a hole to be slightly smaller and hold a bolt by pressure. You can also add an empty slot and slip a nut inside to grip your bolt. But if you want a real quality hold.. this is the way to go! Installation isn’t perfect, but it also isn’t too bad. You just simply drop it in using the provided guide lip, then press it in with a soldering iron. It smoothly goes in, and it doesn’t budge once it’s cool. The force required to pull it out is pretty extreme, the teeth provide a strong hold on rotational forces, and the bolt will never strip these unless you do something seriously wrong. These are especially great for 3D printed printer upgrades that will be taken apart and put back together somewhat often but also need to remain strong and sturdy!

## Frequently Bought Together

- AIEX 100pcs 3D Printing Brass Nuts, M3 Threaded Insert Knurled Brass Nuts Female Thread Knurled Heat Embedment Nut for 3D Printing Parts Loptop Automotive Plastic Shell(M3*4.6x5.7mm)
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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-28*