---
product_id: 512375127
title: "ruthex 1/4\" Threaded Inserts - 20 Pieces RX-1/4“-20x12.7 Brass Heat Set Insert for Plastic Parts - Inches knurled Nuts - Insert by Heat into 3D Printing Components"
brand: "ruthex"
price: "6.29 OMR"
currency: OMR
in_stock: true
reviews_count: 13
category: "Ruthex"
url: https://www.desertcart.com.om/products/512375127-ruthex-1-4-threaded-inserts-20-pieces-rx-1-4
store_origin: OM
region: Oman
---

# Heat-Set & Ultrasonic Installation 1/4" UNC Thread Size Lead-Free Brass, Corrosion Resistant ruthex 1/4" Threaded Inserts - 20 Pieces RX-1/4“-20x12.7 Brass Heat Set Insert for Plastic Parts - Inches knurled Nuts - Insert by Heat into 3D Printing Components

**Brand:** ruthex
**Price:** 6.29 OMR
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** ruthex 1/4" Threaded Inserts - 20 Pieces RX-1/4“-20x12.7 Brass Heat Set Insert for Plastic Parts - Inches knurled Nuts - Insert by Heat into 3D Printing Components by ruthex
- **How much does it cost?** 6.29 OMR with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.om](https://www.desertcart.com.om/products/512375127-ruthex-1-4-threaded-inserts-20-pieces-rx-1-4)

## 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 1/4" UNC Thread:** Engineered for seamless fit in 3D printed parts, ensuring clean, reliable fastening every time.
- • **Durable Lead-Free Brass Construction:** Premium corrosion resistance and thermal conductivity for long-lasting, reusable inserts.
- • **Effortless Heat or Ultrasonic Embedding:** Simplify your assembly with quick, secure installation using soldering irons or ultrasonic tools.
- • **Complete 20-Piece Set for Pro-Level Builds:** Stock up with enough inserts to tackle multiple projects or prototypes without pause.
- • **Universal Compatibility with Thermoplastics:** Perfectly anchors in PLA, PETG, ABS, and more—ideal for all your 3D printing projects.

## Overview

The ruthex 1/4" Threaded Inserts set includes 20 lead-free brass knurled nuts designed for heat or ultrasonic embedding into thermoplastic 3D printed parts. Featuring a 1/4"-20 UNC thread, these inserts provide a firm, corrosion-resistant hold compatible with popular plastics like PLA and ABS, making them essential for professional-grade 3D printing assembly and repair.

## Description

ruthex 1/4" Threaded Inserts - 20 Pieces RX-1/4“-20x12.7 Brass Heat Set Insert for Plastic Parts - Inches 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: Nice inserts. - I have used Ruthex before. No problems. The inserts hold very well in #D prints. Recommended. Thanks.

## Features

- 1/4" THREAD INSERTS FOR YOUR 3D PRINTED PARTS: The ruthex threaded nuts can be retrofitted by heat or ultrasounds into parts of 3D printers from e.g. Anycubic or Prusa. With the help of heat from a soldering iron or ultrasounds, the knurled 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 threaded inserts set are lead free and RX-1/4“-20x12.7 consists of 20 insert nuts with 1/4" 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 | B09MTS6ZZQ |
| Best Sellers Rank | #733 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Nut Inserts |
| Brand | ruthex |
| Color | UNC Threaded Insert |
| Date First Available | September 9, 2022 |
| Exterior Finish | Brass |
| Fastener Type | Insert |
| Finish Type | Brass |
| Inside Thread Size | 1/4 inch |
| Item Diameter | 0.25 Inches |
| Item Weight | 1.76 ounces |
| Item model number | GE-1/4x127-001 |
| Manufacturer | ruthex |
| Material | Brass |
| Metal Type | Brass |
| Number of Pieces | 20 |
| Set Name | 20 Pieces |
| Size | 1/4“-20x12.7 (20pcs) |
| Thread Class | Coarse |
| Thread Coverage | Fully Threaded |
| Thread Size | 1/4"-20 |
| Thread Style | Right Hand |
| Thread Type | Unified National Coarse |

## Product Details

- **Color:** UNC Threaded Insert
- **Exterior Finish:** Brass
- **Fastener Type:** Insert
- **Material:** Brass
- **Thread Size:** 1/4"-20

## Images

![ruthex 1/4" Threaded Inserts - 20 Pieces RX-1/4“-20x12.7 Brass Heat Set Insert for Plastic Parts - Inches knurled Nuts - Insert by Heat into 3D Printing Components - Image 1](https://m.media-amazon.com/images/I/71T4NfgP9oL.jpg)
![ruthex 1/4" Threaded Inserts - 20 Pieces RX-1/4“-20x12.7 Brass Heat Set Insert for Plastic Parts - Inches knurled Nuts - Insert by Heat into 3D Printing Components - Image 2](https://m.media-amazon.com/images/I/813D0hRHwgL.jpg)
![ruthex 1/4" Threaded Inserts - 20 Pieces RX-1/4“-20x12.7 Brass Heat Set Insert for Plastic Parts - Inches knurled Nuts - Insert by Heat into 3D Printing Components - Image 3](https://m.media-amazon.com/images/I/71j1czhNnfL.jpg)
![ruthex 1/4" Threaded Inserts - 20 Pieces RX-1/4“-20x12.7 Brass Heat Set Insert for Plastic Parts - Inches knurled Nuts - Insert by Heat into 3D Printing Components - Image 4](https://m.media-amazon.com/images/I/71ZR0CCb6FL.jpg)
![ruthex 1/4" Threaded Inserts - 20 Pieces RX-1/4“-20x12.7 Brass Heat Set Insert for Plastic Parts - Inches knurled Nuts - Insert by Heat into 3D Printing Components - Image 5](https://m.media-amazon.com/images/I/71tmpN6C+0L.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.

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐⭐ Next level of 3d printing
*by W***Y on January 14, 2026*

I've never had any trouble setting these with my soldering iron. I don't use any additional tools, jigs, or presses. Pretty easy stuff They work well and don't come out. Big fan

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.com.om/products/512375127-ruthex-1-4-threaded-inserts-20-pieces-rx-1-4](https://www.desertcart.com.om/products/512375127-ruthex-1-4-threaded-inserts-20-pieces-rx-1-4)

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*Product available on Desertcart Oman*
*Store origin: OM*
*Last updated: 2026-02-18*