---
product_id: 504894953
title: "ruthex M4 Threaded Inserts - 50 Pieces RX-M4x8.1 Brass Heat Set Insert for Pl..."
brand: "ruthex"
price: "R341"
currency: ZAR
in_stock: true
url: https://www.desertcart.co.za/products/504894953-ruthex-m4-threaded-inserts-50-pieces-rx-m4x8-1-brass
store_origin: ZA
region: South Africa
---

# Heat Set Application M4 Internal Thread Reusable Design ruthex M4 Threaded Inserts - 50 Pieces RX-M4x8.1 Brass Heat Set Insert for Pl...

**Brand:** ruthex
**Price:** R341
**Availability:** ✅ In Stock

## Summary

> 🔩 Elevate Your 3D Printing Game with Ruthex Inserts!

## Quick Answers

- **What is this?** ruthex M4 Threaded Inserts - 50 Pieces RX-M4x8.1 Brass Heat Set Insert for Pl... by ruthex
- **How much does it cost?** R341 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/504894953-ruthex-m4-threaded-inserts-50-pieces-rx-m4x8-1-brass)

## Best For

- ruthex enthusiasts

## Why This Product

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

## Key Features

- • **⚙️ Easy Installation:** Effortlessly embed these inserts using heat or ultrasound, simplifying your 3D printing process.
- • **📦 Convenient Set of 50:** Get 50 M4 threaded inserts in one package, ensuring you have enough for all your creative endeavors.
- • **🔧 Firm & Reliable Hold:** Experience unmatched stability with our spiral-shaped knurled nuts, ensuring a secure grip in your 3D printed parts.
- • **🛠️ Versatile Compatibility:** Designed for all thermoplastics, including PLA, PETG, and ABS, making them perfect for any 3D printing project.
- • **🌡️ Superior Thermal Conductivity:** Crafted from lead-free brass, these inserts offer excellent thermal conductivity and corrosion resistance for long-lasting performance.

## Overview

The ruthex M4 Threaded Inserts are a set of 50 lead-free brass heat set inserts designed for easy application in various thermoplastics. With a robust internal thread and excellent thermal conductivity, these inserts provide a reliable and reusable solution for enhancing the durability of your 3D printed components.

## Description

ruthex M4 Threaded Inserts - 50 Pieces RX-M4x8.1 Brass Heat Set Insert for Plastic Parts - Metric knurled Nuts - Insert by Heat into 3D Printing Components

## Features

- M4 THREADED INSERTS FOR YOUR 3D PRINTED PARTS: The ruthex threaded nuts can be retrofitted by heat or ultrasound into parts of 3D printers from e.g. Anycubic or Prusa. With the help of heat from a soldering iron or ultrasonic, the insert nuts are simply embedded in a blind- or through hole
- FIRM HOLDING WITH EASY APPLICATION: Thanks to the geometry of the threaded sleeve, it firmly holds in the pressure part. The opposing spiral-shaped knurled nuts ensure a high balanced tightening and loosening torque, as well as a high tightening force. Through the guide, insertion has been greatly simplified
- STABLE & LONG-LASTING THREAD INSERTS: The inserts with internal thread lead free brass, which ensures optimum corrosion resistance and thermal conductivity. thermal conductivity. This means that each insert nut can be used for a long time and is easy to use. The reusability of the insert nut is also possible by carefully removing them from the pressure part when they are no longer needed
- SUITABLE FOR A VARIETY OF PLASTICS: The inserts are designed for all thermoplastics. For example, the knurled nuts hold in PLA, PETG, ABS, PPS, PP and many more. As soon as the plastic of the part around the brass sleeve cools and hardens, the threaded sleeve is firmly anchored
- PRACTICAL THREAD INSERT SET: The ruthex threaded inserts set are lead free and RX-M4x8,1 consists of 50 insert nuts with M4 internal thread and a length of 8.1 mm. The threaded sleeves can be inserted by ultrasonic and heat embedding

## Product Details

- **Material:** Brass
- **Fastener Type:** Insert
- **Thread Size:** M4 x 8.1
- **Exterior Finish:** Brass
- **Color:** Metric Threaded Insert

## Images

![ruthex M4 Threaded Inserts - 50 Pieces RX-M4x8.1 Brass Heat Set Insert for Pl... - Image 1](https://m.media-amazon.com/images/I/71T1rovo1LL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Frequently Bought Together

- ruthex M4 Threaded Inserts - 50 Pieces RX-M4x8.1 Brass Heat Set Insert for Plastic Parts - Metric knurled Nuts - Insert by Heat into 3D Printing Components
- ruthex 7x Soldering Tips/Heat-Set Insert Tips - for Thread Inserts M2 / M2.5 / M3 / M4 / M5 / M6 / M8 - #2-56 / #4-40 / #8-32/ #10-24 1/4" and Soldering Iron Adapter 900M / T18
- Kadrick Metric Screws Assortment,270 Pcs M4 Screw Kit,Hex Socket Head Cap Bolts, M4*6mm/8mm/12mm/16mm/20mm/30mm Screws Nuts and Washers, 12.9 Grade Alloy Steel,Black Zinc Plated,Anti Rust Upgrade

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**Shop now:** [https://www.desertcart.co.za/products/504894953-ruthex-m4-threaded-inserts-50-pieces-rx-m4x8-1-brass](https://www.desertcart.co.za/products/504894953-ruthex-m4-threaded-inserts-50-pieces-rx-m4x8-1-brass)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-02-20*