---
product_id: 512375127
title: "ruthex 1/4\" Short Threaded Inserts - 20 Pieces RX-1/4“-20x6.4 Brass Heat Set Insert for Plastic Parts - Inches knurled Nuts - Insert by Heat into 3D Printing Components"
brand: "ruthex"
price: "£10.72"
currency: GBP
in_stock: true
reviews_count: 13
category: "Ruthex"
url: https://www.desertcart.co.uk/products/512375127-ruthex-1-4-short-threaded-inserts-20-pieces-rx-1
store_origin: GB
region: United Kingdom
---

# Heat-Set & Ultrasonic Installation 1/4" UNC Thread Size Lead-Free Brass, Corrosion Resistant ruthex 1/4" Short Threaded Inserts - 20 Pieces RX-1/4“-20x6.4 Brass Heat Set Insert for Plastic Parts - Inches knurled Nuts - Insert by Heat into 3D Printing Components

**Brand:** ruthex
**Price:** £10.72
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** ruthex 1/4" Short Threaded Inserts - 20 Pieces RX-1/4“-20x6.4 Brass Heat Set Insert for Plastic Parts - Inches knurled Nuts - Insert by Heat into 3D Printing Components by ruthex
- **How much does it cost?** £10.72 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/512375127-ruthex-1-4-short-threaded-inserts-20-pieces-rx-1)

## 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 20 knurled inserts, each 12.7mm long, ready to elevate your 3D printing components to professional-grade durability.
- • **Durable Brass Construction:** Lead-free brass ensures superior corrosion resistance and thermal conductivity for long-lasting, reusable threads.
- • **Precision Fit for 3D Prints:** Seamlessly retrofit Anycubic, Prusa & more with 1/4" threaded inserts designed for perfect anchoring in thermoplastics.
- • **Universal Compatibility with Plastics:** Engineered to bond firmly with PLA, PETG, ABS, PPS, PP, and other thermoplastics—versatility that keeps your projects strong.
- • **Effortless Heat or Ultrasound Installation:** Embed inserts quickly using soldering iron heat or ultrasonic tools—no special skills required, just reliable results.

## 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 size and 12.7mm length, these inserts provide corrosion-resistant, reusable, and firm threaded connections compatible with popular 3D printers like Anycubic and Prusa.

## Description

Product description

Review: Perfect for model railroad. - Works perfectly. High quality products.
Review: Top notch brand. - Impressive. Worked very well, easy to press in. Threads nice and clean.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0F2ZBN1K9 |
| Best Sellers Rank | #1,086 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Nut Inserts |
| Brand | ruthex |
| Color | UNC Threaded Insert |
| Compatible Groove Diameter | 0.25 Inches |
| Customer Reviews | 4.7 out of 5 stars 352 Reviews |
| Exterior Finish | Brass |
| Fastener Type | Insert |
| Finish Types | Unfinished |
| Grade Rating | Industrial |
| Inside Thread Size | 1/4 |
| Item Diameter | 0.25 Inches |
| Item Dimensions | 4.72 x 3.54 x 0.39 inches |
| Manufacturer | ruthex |
| Material | Brass |
| Material Type | Brass |
| Metal Type | Brass |
| Model | GE-1/4x64-001 |
| Number Of Items | 1 |
| Number of Pieces | 20 |
| Outside Diameter | 0.25 Inches |
| Part Number | GE-1/4x64-001 |
| Screw Head Style | Knurled |
| Set Name | Brass Insert Set (20 Pieces) |
| Size Name | 1/4“-20x6.4 (20pcs) |
| Thread Class | Coarse |
| Thread Coverage | Fully Threaded |
| Thread Size | 1/4"-20 |
| Thread Style | Right Hand |
| Thread Type | Unified National Coarse |
| Unit Count | 20.0 Count |

## Product Details

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

## Images

![ruthex 1/4" Short Threaded Inserts - 20 Pieces RX-1/4“-20x6.4 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/816SGCaoerL.jpg)
![ruthex 1/4" Short Threaded Inserts - 20 Pieces RX-1/4“-20x6.4 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/81JGu9bPLkL.jpg)
![ruthex 1/4" Short Threaded Inserts - 20 Pieces RX-1/4“-20x6.4 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/71bx2j4FYLL.jpg)
![ruthex 1/4" Short Threaded Inserts - 20 Pieces RX-1/4“-20x6.4 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/71KlGszNwjL.jpg)
![ruthex 1/4" Short Threaded Inserts - 20 Pieces RX-1/4“-20x6.4 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/71ZuO-gdttL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect for model railroad.
*by S***R on March 12, 2026*

Works perfectly. High quality products.

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

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

### ⭐⭐⭐⭐⭐ May fix plastic 1/4-20s
*by G***E on May 16, 2026*

Fixed a 1/4-20 on my digital recorder that had a plastic thread. Had to use a HOT soldering iron to heat it up to fit in but worked great.

## Frequently Bought Together

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

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-06-09*