---
product_id: 512375127
title: "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: "COP 74722"
currency: COP
in_stock: true
reviews_count: 13
category: "Ruthex"
url: https://www.desertcart.co/products/512375127-1-4-threaded-inserts-20-pieces-rx-1-4-20x12
store_origin: CO
region: Colombia
---

# Heat-Set Installation 1/4" UNC Thread Size Lead-Free Brass Durability 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:** COP 74722
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** 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?** COP 74722 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co](https://www.desertcart.co/products/512375127-1-4-threaded-inserts-20-pieces-rx-1-4-20x12)

## 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

- • **Bulk 20-Piece Set:** Stock up with 20 inserts to keep your projects moving without interruption.
- • **Superior Brass Construction:** Lead-free brass ensures corrosion resistance and excellent thermal conductivity for long-lasting performance.
- • **Precision 1/4" UNC Threading:** Engineered for seamless compatibility with standard 3D printer components and hardware.
- • **Effortless Heat-Set Embedding:** Quickly install inserts using soldering iron or ultrasonic tools for a secure, professional finish.
- • **Universal Plastic Compatibility:** Optimized for PLA, PETG, ABS, and more—perfect for diverse 3D printing materials.

## 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 a firm, corrosion-resistant hold compatible with popular plastics like PLA and ABS, ensuring durable, reusable threaded connections for professional-grade 3D printing enhancements.

## 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: 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.

## 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 | #1,807 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #997 in 3D Printer Accessories |
| Brand | ruthex |
| Color | UNC Threaded Insert |
| Compatible Groove Diameter | 0.25 Inches |
| Customer Reviews | 4.8 out of 5 stars 362 Reviews |
| Drive Style | Spline |
| Exterior Finish | Brass |
| Fastener Type | Insert |
| Finish Types | Brass |
| Grade Rating | commercial |
| Inside Thread Size | 1/4 inch |
| Item Diameter | 0.25 Inches |
| Item Dimensions | 4.72 x 3.15 x 0.39 inches |
| Manufacturer | ruthex |
| Material | Brass |
| Material Type | Brass |
| Metal Type | Brass |
| Model | GE-1/4x127-001 |
| Number Of Items | 1 |
| Number of Pieces | 20 |
| Part Number | GE-P-D |
| Screw Head Style | Flat |
| Set Name | 20 Pieces |
| Size Name | 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

![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)

## 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.

### ⭐⭐⭐⭐⭐ Great Inserts
*by T***0 on June 4, 2026*

Holds strong, doesn't spin. What more could you ask for?

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*Product available on Desertcart Colombia*
*Store origin: CO*
*Last updated: 2026-07-10*