---
product_id: 661928650
title: "ruthex M8 Threaded Inserts - 20 Pieces RX-M8x12.7 Brass Heat Set Insert for Plastic Parts - Metric knurled Nuts - Insert by Heat into 3D Printing Components"
brand: "ruthex"
price: "HK$145"
currency: HKD
in_stock: true
reviews_count: 13
category: "Ruthex"
url: https://www.desertcart.hk/products/661928650-ruthex-m8-threaded-inserts-20-pieces-rx-m8x12-7-brass
store_origin: HK
region: Hong Kong
---

# Heat-set & ultrasonic install M8 internal thread precision Lead-free brass corrosion resistance ruthex M8 Threaded Inserts - 20 Pieces RX-M8x12.7 Brass Heat Set Insert for Plastic Parts - Metric knurled Nuts - Insert by Heat into 3D Printing Components

**Brand:** ruthex
**Price:** HK$145
**Availability:** ✅ In Stock

## Summary

> 🔧 Upgrade your 3D prints with threaded precision and lasting strength!

## Quick Answers

- **What is this?** ruthex M8 Threaded Inserts - 20 Pieces RX-M8x12.7 Brass Heat Set Insert for Plastic Parts - Metric knurled Nuts - Insert by Heat into 3D Printing Components by ruthex
- **How much does it cost?** HK$145 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/661928650-ruthex-m8-threaded-inserts-20-pieces-rx-m8x12-7-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

- • **Complete 20-Piece Set:** Stock up with enough inserts to power through multiple projects without interruption.
- • **Precision M8 Threading:** Seamlessly integrates with your 3D printed parts for a professional finish.
- • **Durable Lead-Free Brass Construction:** Ensures long-lasting corrosion resistance and thermal conductivity for reliable performance.
- • **Effortless Heat or Ultrasonic Installation:** Embed inserts quickly with soldering iron or ultrasonic tools—no hassle, no mess.
- • **Universal Compatibility with Thermoplastics:** Perfectly anchors in PLA, PETG, ABS, and more—versatility that keeps your projects strong.

## Overview

The ruthex M8 Threaded Inserts set includes 20 high-quality, lead-free brass knurled nuts designed for heat or ultrasonic embedding into thermoplastic 3D printed parts. Featuring M8 internal threading and a 12.7mm length, these inserts provide a firm, corrosion-resistant hold compatible with popular plastics like PLA and ABS, ensuring durable, reusable, and professional-grade fastening solutions for your 3D printing projects.

## Description

ruthex M8 Threaded Inserts - 20 Pieces RX-M8x12.7 Brass Heat Set Insert for Plastic Parts - Metric knurled Nuts - Insert by Heat into 3D Printing Components: desertcart.com: Tools & Home Improvement

Review: High-Quality Heat Inserts - Overall, I’m very happy with these heat inserts. They shipped quickly and arrived in good condition with no issues. In use, the machining appears to be high quality and the knurling is clean and consistent. Screws thread in smoothly without binding or cross-threading. I primarily use these for 3D printed parts and have not experienced any fitment or durability problems. They perform exactly as expected and I would recommend them to anyone installing threaded inserts in 3D prints.
Review: Top notch brand. - Impressive. Worked very well, easy to press in. Threads nice and clean.

## Features

- M8 THREAD 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 holds firmly 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. 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 thread insert set are lead free RX-M8x12.7 consists of 20 insert nuts with M8 internal thread and a length of 12.7 mm. The threaded sleeves can be inserted by ultrasonic and heat embedding

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B085X28168 |
| Best Sellers Rank | #689 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Nut Inserts |
| Brand | ruthex |
| Color | Metric Threaded Insert |
| Date First Available | May 29, 2020 |
| Exterior Finish | Brass |
| Fastener Type | Insert |
| Finish Type | Brass |
| Inside Thread Size | M8 x 12 7 |
| Item Diameter | 8 Millimeters |
| Item Weight | 2.11 ounces |
| Item model number | GE-M8x127-001 |
| Manufacturer | ruthex |
| Material | Brass |
| Metal Type | Brass |
| Number of Pieces | 20 |
| Size | M8x12.7 (20pcs) |
| Thread Class | Class 6 |
| Thread Coverage | Fully Threaded |
| Thread Size | M8 |
| Thread Style | Right Hand |
| Thread Type | Iso Metric |

## Product Details

- **Color:** Metric Threaded Insert
- **Exterior Finish:** Brass
- **Fastener Type:** Insert
- **Material:** Brass
- **Thread Size:** M8

## Images

![ruthex M8 Threaded Inserts - 20 Pieces RX-M8x12.7 Brass Heat Set Insert for Plastic Parts - Metric knurled Nuts - Insert by Heat into 3D Printing Components - Image 1](https://m.media-amazon.com/images/I/81c-myoQOEL.jpg)
![ruthex M8 Threaded Inserts - 20 Pieces RX-M8x12.7 Brass Heat Set Insert for Plastic Parts - Metric knurled Nuts - Insert by Heat into 3D Printing Components - Image 2](https://m.media-amazon.com/images/I/81pKWAOJdoL.jpg)
![ruthex M8 Threaded Inserts - 20 Pieces RX-M8x12.7 Brass Heat Set Insert for Plastic Parts - Metric knurled Nuts - Insert by Heat into 3D Printing Components - Image 3](https://m.media-amazon.com/images/I/717LH8yMKsL.jpg)
![ruthex M8 Threaded Inserts - 20 Pieces RX-M8x12.7 Brass Heat Set Insert for Plastic Parts - Metric knurled Nuts - Insert by Heat into 3D Printing Components - Image 4](https://m.media-amazon.com/images/I/71od3QUANkL.jpg)
![ruthex M8 Threaded Inserts - 20 Pieces RX-M8x12.7 Brass Heat Set Insert for Plastic Parts - Metric knurled Nuts - Insert by Heat into 3D Printing Components - Image 5](https://m.media-amazon.com/images/I/71ntgYcJImL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ High-Quality Heat Inserts
*by M***S on February 14, 2026*

Overall, I’m very happy with these heat inserts. They shipped quickly and arrived in good condition with no issues. In use, the machining appears to be high quality and the knurling is clean and consistent. Screws thread in smoothly without binding or cross-threading. I primarily use these for 3D printed parts and have not experienced any fitment or durability problems. They perform exactly as expected and I would recommend them to anyone installing threaded inserts in 3D prints.

### ⭐⭐⭐⭐⭐ Top notch brand.
*by T***N on January 11, 2026*

Impressive. Worked very well, easy to press in. Threads nice and clean.

### ⭐⭐⭐⭐⭐ Nice inserts.
*by K***4 on January 18, 2026*

I have used Ruthex before. No problems. The inserts hold very well in #D prints. Recommended. Thanks.

## Frequently Bought Together

- ruthex M8 Threaded Inserts - 20 Pieces RX-M8x12.7 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,340 Pcs M3 Screw Kit, Suitable for 3D Printer DIY, 12.9 Grade Alloy Steel Hex Socket Head Cap Bolts Nuts Kit, Black Zinc Plated

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**Shop now:** [https://www.desertcart.hk/products/661928650-ruthex-m8-threaded-inserts-20-pieces-rx-m8x12-7-brass](https://www.desertcart.hk/products/661928650-ruthex-m8-threaded-inserts-20-pieces-rx-m8x12-7-brass)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-02-25*