---
product_id: 214211472
title: "ruthex threaded Insert M3 (100 pieces) - RX-M3x5.7- brass threaded sockets - press-fit nut for plastic parts - by heat or ultrasound in 3D printer parts"
brand: "ruthex"
price: "312 zł"
currency: PLN
in_stock: true
reviews_count: 8
category: "Ruthex"
url: https://www.desertcart.pl/products/214211472-ruthex-threaded-insert-m3-100-pieces-rx-m3x5-7-brass
store_origin: PL
region: Poland
---

# Heat & ultrasound press-fit M3 internal thread precision 100-piece bulk set ruthex threaded Insert M3 (100 pieces) - RX-M3x5.7- brass threaded sockets - press-fit nut for plastic parts - by heat or ultrasound in 3D printer parts

**Brand:** ruthex
**Price:** 312 zł
**Availability:** ✅ In Stock

## Summary

> 🔧 Secure your 3D prints with precision – because every thread counts!

## Quick Answers

- **What is this?** ruthex threaded Insert M3 (100 pieces) - RX-M3x5.7- brass threaded sockets - press-fit nut for plastic parts - by heat or ultrasound in 3D printer parts by ruthex
- **How much does it cost?** 312 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/214211472-ruthex-threaded-insert-m3-100-pieces-rx-m3x5-7-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

- • **Premium Brass Build:** Crafted from high-grade brass ensuring corrosion resistance and excellent thermal conductivity for long-term reliability.
- • **Bulk Pack Convenience:** 100 threaded inserts per set to keep your workflow uninterrupted and your projects on point.
- • **Unmatched Grip & Torque:** Opposite spiral knurled design delivers superior tightening and pull-out resistance for lasting durability.
- • **Tailored for 3D Printing:** Specifically engineered for seamless embedding in 3D printed parts from top brands like Anycubic, Creality, and Prusa.
- • **Versatile Plastic Compatibility:** Optimized for thermoplastics including PLA, PETG, ABS, PPS, and PP, making it perfect for diverse DIY projects.

## Overview

The ruthex Threaded Insert M3 (100 pieces) set features high-quality brass knurled press-fit nuts designed for easy heat or ultrasound embedding into thermoplastic 3D printed parts. Engineered for superior grip and durability, these inserts provide reliable M3 internal threading compatible with popular 3D printers, making them an essential upgrade for professional-grade plastic assemblies.

## Description

ruthex threaded Insert M3 (100 pieces) - RX-M3x5.7- brass threaded sockets - press-fit nut for plastic parts - by heat or ultrasound in 3D printer parts : desertcart.co.uk: DIY & Tools

Review: Great for 3D printed enclosures - I use these in every single 3D printed enclosure I design and they are perfect. Just finished off a bag of M3's and I've ordered some M4 and M5
Review: Inserts, for inserting... - Perfectly as described.

## Features

- 🔧 FIXED HOLD: The opposite spiral knurled nuts ensure a balanced high tightening and loosening torque as well as a high pull-out force. The guidance has made insertion much easier for the user.
- 🔧 3D PRINTING PARTS: The ruthex thread inserts have been developed for subsequent insertion in 3D printer parts from, for example, Anycubic, Creality or Prusa Drucker. The press-in nuts can easily be embedded in a blind or through hole using ultrasound or heat (soldering iron).
- 🔧 STABLE AND DURABLE: The inserts are made of the highest quality brass, which ensures excellent corrosion resistance and thermal conductivity to ensure long-term use and easy insertion.
- 🔧 APPLICATION PLASTICS: The threaded nuts are designed for thermoplastic materials. The plastics PLA, PETG, ABS, PPS, PP, etc. are most suitable.
- 🔧 INCLUDES QUANTITY: ruthex thread insert set RX-M3x5.7 consists of 100 press nuts with an internal thread M3 and a length of 5.7mm for ultrasonic / warm embedding

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08BCRZZS3 |
| Best Sellers Rank | 443,673 in DIY & Tools ( See Top 100 in DIY & Tools ) 557 in Nut Inserts |
| Brand Name | ruthex |
| Colour | yellow |
| Compatible Groove Diameter | 3 Millimeters |
| Country Of Origin | China |
| Customer Reviews | 4.8 4.8 out of 5 stars (1,424) |
| Drive Style | Spline |
| Exterior Finish | Brass |
| Fastener Type | Knurled |
| Finish Types | Brass |
| Grade Rating | Industrial |
| Inside Thread Size | M3 |
| Item Diameter | 3 Millimetres |
| Item Dimensions | 12 x 9 x 1 centimetres |
| Manufacturer | LUTDTRS |
| Manufacturer Part Number | GE-M3x57-001 |
| Material Type | Brass |
| Metal | Brass |
| Model Number | GE-M3x57-001 |
| Number of Pieces | 100 |
| Screw Head Style | Flat |
| Set Name | ruthex Threaded Insert M3 (100 pieces) Set |
| Size | M3 |
| Thread Class | Class 2A |
| Thread Coverage | Fully Threaded |
| Thread Size | M 3 |
| Thread Style | Right Hand |
| Thread Type | ISO Metric |
| Unit Count | 100.0 count |

## Product Details

- **Brand:** ruthex
- **Colour:** yellow
- **Exterior finish:** Brass
- **Fastener type:** Knurled
- **Finish type:** Brass
- **Item dimensions L x W x H:** 12 x 9 x 1 centimetres
- **Material:** Brass
- **Metal type:** Brass
- **Thread size:** M 3
- **Thread type:** ISO Metric

## Images

![ruthex threaded Insert M3 (100 pieces) - RX-M3x5.7- brass threaded sockets - press-fit nut for plastic parts - by heat or ultrasound in 3D printer parts - Image 1](https://m.media-amazon.com/images/I/717sikDXLoL.jpg)
![ruthex threaded Insert M3 (100 pieces) - RX-M3x5.7- brass threaded sockets - press-fit nut for plastic parts - by heat or ultrasound in 3D printer parts - Image 2](https://m.media-amazon.com/images/I/81pKWAOJdoL.jpg)
![ruthex threaded Insert M3 (100 pieces) - RX-M3x5.7- brass threaded sockets - press-fit nut for plastic parts - by heat or ultrasound in 3D printer parts - Image 3](https://m.media-amazon.com/images/I/717LH8yMKsL.jpg)
![ruthex threaded Insert M3 (100 pieces) - RX-M3x5.7- brass threaded sockets - press-fit nut for plastic parts - by heat or ultrasound in 3D printer parts - Image 4](https://m.media-amazon.com/images/I/71od3QUANkL.jpg)
![ruthex threaded Insert M3 (100 pieces) - RX-M3x5.7- brass threaded sockets - press-fit nut for plastic parts - by heat or ultrasound in 3D printer parts - Image 5](https://m.media-amazon.com/images/I/71ntgYcJImL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great for 3D printed enclosures
*by S***E on 11 July 2020*

I use these in every single 3D printed enclosure I design and they are perfect. Just finished off a bag of M3's and I've ordered some M4 and M5

### ⭐⭐⭐⭐⭐ Inserts, for inserting...
*by D***S on 30 September 2020*

Perfectly as described.

### ⭐⭐⭐⭐⭐ Never used these before absolutely great easy and works very well
*by M***N on 15 October 2020*

liked every thing about them, first time used them no issues easy worked well and will definitely now use them.

## Frequently Bought Together

- ruthex M3 Threaded Inserts - 100 Pieces RX-M3x5.7 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,2240 Pcs M3 Screws Nuts Washers Assortment M3x4MM-35MM, Hex Socket Button & Cap Head M3 Machine Bolts Kit, 12.9 & 10.9 Grade Alloy Steel,Black Screws for 3D Printing

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-05-06*