---
product_id: 153399609
title: "uxcell Knurled Insert Nuts - 50Pcs M3 x 6mm Length x 5mm OD Female Thread Brass Threaded Insert Embedment Nut for 3D Printer"
brand: "uxcell"
price: "₩23598"
currency: KRW
in_stock: true
reviews_count: 13
category: "Uxcell"
url: https://www.desertcart.kr/products/153399609-uxcell-knurled-insert-nuts-50pcs-m3-x-6mm-length-x
store_origin: KR
region: South Korea
---

# M3 x 6mm precision size Heat & ultrasound install ready Durable brass build uxcell Knurled Insert Nuts - 50Pcs M3 x 6mm Length x 5mm OD Female Thread Brass Threaded Insert Embedment Nut for 3D Printer

**Brand:** uxcell
**Price:** ₩23598
**Availability:** ✅ In Stock

## Summary

> 🔩 Lock in Precision, Unlock Your Project’s Potential!

## Quick Answers

- **What is this?** uxcell Knurled Insert Nuts - 50Pcs M3 x 6mm Length x 5mm OD Female Thread Brass Threaded Insert Embedment Nut for 3D Printer by uxcell
- **How much does it cost?** ₩23598 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/153399609-uxcell-knurled-insert-nuts-50pcs-m3-x-6mm-length-x)

## Best For

- uxcell enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Crafted from high-hardness brass, these inserts resist corrosion and heat, guaranteeing longevity in demanding projects.
- • **Smooth Operation:** Machined for smooth screw glide, preventing cross-threading and ensuring reliable fastening.
- • **Effortless Installation:** Knurled design with built-in guide means no countersinking needed—install with heat or ultrasound for a perfect embedment.
- • **Precision Fit, Every Time:** M3 thread with 0.5mm pitch ensures seamless screw compatibility for flawless assembly.
- • **Versatile 3D Printing Essential:** Ideal for injection molding and 3D printer parts, locking components tightly for professional-grade builds.

## Overview

The uxcell Knurled Insert Nuts come in a pack of 50, sized M3 x 6mm with a 5mm outer diameter, made from durable brass for superior corrosion and heat resistance. Designed for easy installation via heat or ultrasound, these threaded inserts provide a smooth, secure fit ideal for 3D printing and injection molding applications, ensuring your assemblies stay tight and professional.

## Description

uxcell Knurled Insert Nuts - 50Pcs M3 x 6mm Length x 5mm OD Female Thread Brass Threaded Insert Embedment Nut for 3D Printer: desertcart.com: Industrial & Scientific

Review: These work great and seem to be well-made - Wow, these work great! I'm just getting started with 3D printing, and came across these by accident. I have a big 3D printing project that requires me to be able to screw parts together, and these fit the bill. It's a little bit of a challenge to get them in straight with just a soldering iron. When putting one of these in, as soon as I get it sunk into the plastic, I put a screw into it and adjust the placement while the plastic is still hot. That seems to work pretty well, but I have to be quick, before the plastic cools. Thankfully if it's not quite right I can just heat up the insert again and make whatever adjustments are necessary. When I ordered these inserts, I was concerned that they wouldn't be anchored firmly enough in the plastic, but that fear turned out to be completely unfounded. Once these guys are sunk into the plastic, they're in for good. They seem to be machined well -- the screws I bought glide in smoothly, with no issues. I'll definitely buy these again.
Review: works great - works great awesome product

## Features

- [Size] - Thread Size: M3; Pitch: 0.5mm; Length: 6mm / 0.24"; Outer Diameter: 5mm / 0.2"; Package Content: 50(+/-2%) x Knurled Insert Nuts
- [Material] - Made of brass material, high hardness and durable. Provides good mechanical properties with increased corrosion and heat resistance
- [Feature] - It can be installed into a plastic matrix by ultrasound or heat during the injection molding process.
- [Easy to Install] - The knurled insert nut has a guide, so no countersink is required. The surface is smooth, firm and even, and easy to install.
- [Application] - Can be widely used in 3D printing injection molding to achieve tight fixation.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07LBQRYR3 |
| Best Sellers Rank | #117,113 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #189 in Nut Inserts |
| Brand | uxcell |
| Color | Gold |
| Date First Available | December 13, 2018 |
| Exterior Finish | Brass |
| Fastener Type | Knurled |
| Finish Type | Brass |
| Inside Thread Size | M3 |
| Item Diameter | 5 Millimeters |
| Item Weight | 1.58 ounces |
| Item model number | a18110700ux0611 |
| Manufacturer | uxcell |
| Material | Brass |
| Metal Type | Brass |
| Number of Pieces | 50 |
| Size | M3x6x5mm |
| Thread Class | Fine |
| Thread Size | m3 |
| Thread Style | Standard |
| Thread Type | Iso Metric |

## Product Details

- **Color:** Gold
- **Exterior Finish:** Brass
- **Fastener Type:** Knurled
- **Material:** Brass
- **Thread Size:** m3

## Images

![uxcell Knurled Insert Nuts - 50Pcs M3 x 6mm Length x 5mm OD Female Thread Brass Threaded Insert Embedment Nut for 3D Printer - Image 1](https://m.media-amazon.com/images/I/51BK9j5vesL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ These work great and seem to be well-made
*by M***N on March 25, 2019*

Wow, these work great! I'm just getting started with 3D printing, and came across these by accident. I have a big 3D printing project that requires me to be able to screw parts together, and these fit the bill. It's a little bit of a challenge to get them in straight with just a soldering iron. When putting one of these in, as soon as I get it sunk into the plastic, I put a screw into it and adjust the placement while the plastic is still hot. That seems to work pretty well, but I have to be quick, before the plastic cools. Thankfully if it's not quite right I can just heat up the insert again and make whatever adjustments are necessary. When I ordered these inserts, I was concerned that they wouldn't be anchored firmly enough in the plastic, but that fear turned out to be completely unfounded. Once these guys are sunk into the plastic, they're in for good. They seem to be machined well -- the screws I bought glide in smoothly, with no issues. I'll definitely buy these again.

### ⭐⭐⭐⭐⭐ works great
*by G***C on September 20, 2025*

works great awesome product

### ⭐⭐⭐⭐ Non Optimal Configuration
*by B***E on November 7, 2023*

These insert nuts have a big lip on each side. That lip has the knurled surface, and the middle section is smooth. These lips push more material into the threads on the side being melted into the part. The nuts are also hard to align with the printed socket, as there's no bevel on either side of the nut to line up with the hole.

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-02-19*