---
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: "₨418"
currency: SCR
in_stock: true
reviews_count: 8
category: "Ruthex"
url: https://www.desertcart.sc/products/661928650-ruthex-m8-threaded-inserts-20-pieces-rx-m8x12-7-brass
store_origin: SC
region: Seychelles
---

# Heat-set or ultrasonic insertion 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:** ₨418
**Availability:** ✅ In Stock

## Summary

> 🔧 Upgrade your 3D prints with threaded perfection—because your projects deserve the best!

## 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?** ₨418 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/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

- • **Precision M8 Threading:** Engineered for flawless fit in 3D printed parts, ensuring reliable assembly every time.
- • **Universal Compatibility:** Perfectly anchors in PLA, PETG, ABS, and more—your go-to solution for all thermoplastic 3D prints.
- • **Superior Grip with Knurled Design:** Spiral knurled sleeve guarantees balanced torque and a rock-solid hold in various thermoplastics.
- • **Durable Lead-Free Brass Construction:** Corrosion-resistant and thermally conductive for long-lasting, reusable performance.
- • **Effortless Heat or Ultrasonic Installation:** Embed inserts seamlessly with a soldering iron or ultrasonic tool—no special tips needed.

## Overview

The ruthex M8 Threaded Inserts set includes 20 high-quality, lead-free brass knurled nuts designed for heat or ultrasonic embedding into 3D printed plastic parts. Featuring M8 internal threading and a 12.7 mm length, these inserts provide a durable, corrosion-resistant, and reusable fastening solution compatible with a wide range of thermoplastics like PLA, PETG, and ABS. Ideal for professional-grade 3D printing applications, they ensure a secure, balanced torque hold and easy installation without special tools.

## 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: Top notch brand. - Impressive. Worked very well, easy to press in. Threads nice and clean.
Review: Easy to use - Great product. Works as intended. Easy to heat with a soldering iron. No special tip required, just a large cone tip.

## 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 | #738 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Nut Inserts |
| Brand | ruthex |
| Color | Metric Threaded Insert |
| Compatible Groove Diameter | 7.92 Millimeters |
| Customer Reviews | 4.8 out of 5 stars 4,854 Reviews |
| Drive Style | Spline |
| Exterior Finish | Brass |
| Fastener Type | Insert |
| Finish Types | Brass |
| Grade Rating | industrial |
| Inside Thread Size | M8 x 12 7 |
| Item Diameter | 8 Millimeters |
| Item Dimensions | 4.72 x 3.54 x 0.51 inches |
| Item Height | 13 millimeters |
| Manufacturer | ruthex |
| Material | Brass |
| Material Type | Brass |
| Metal Type | Brass |
| Number of Pieces | 20 |
| Screw Head Style | Flat |
| Size Name | 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/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 2](https://m.media-amazon.com/images/I/71fsIiC-SIL.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/71ntgYcJImL.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/81c-myoQOEL.jpg)

## Available Options

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

## Customer Reviews

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

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

### ⭐⭐⭐⭐⭐ Easy to use
*by M***D on July 28, 2025*

Great product. Works as intended. Easy to heat with a soldering iron. No special tip required, just a large cone tip.

### ⭐⭐⭐⭐⭐ This is the only brand to buy, consistently perfect. Never fail.
*by T***R on August 15, 2025*

Buy these, no matter what. You’ll regret buying from others, promise. I use thousands of these for my products for customers. They are essential to my business. I recently tried to buy another brand that was a little cheaper and it was a bad mistake. About half of them have damaged or defected threads, but you don’t know until after you try a screw in them. This has caused me many failed prints, a lot of money wasted. All because I tried to save a few bucks. I will never go to any other brand, this is literally the only one I trust. I don’t leave reviews, but after the nightmare with the other brand that starts with a U, I felt it was imperative I help out others. Don’t buy anything else.

## 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.sc/products/661928650-ruthex-m8-threaded-inserts-20-pieces-rx-m8x12-7-brass](https://www.desertcart.sc/products/661928650-ruthex-m8-threaded-inserts-20-pieces-rx-m8x12-7-brass)

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-02-03*