---
product_id: 82809194
title: "#4-40 x 0.135\" Qty 50 Threaded Heat-Set Inserts used for connecting 3D printed and injection molded parts."
brand: "virtjoule"
price: "€ 0.24"
currency: EUR
in_stock: false
reviews_count: 2
url: https://www.desertcart.hr/products/82809194-4-40-x-0-135-qty-50-threaded-heat-set
store_origin: HR
region: Croatia
---

# Quantity: 50 pcs Length: 0.135" Size: #4-40 #4-40 x 0.135" Qty 50 Threaded Heat-Set Inserts used for connecting 3D printed and injection molded parts.

**Brand:** virtjoule
**Price:** € 0.24
**Availability:** ❌ Out of Stock

## Summary

> 🔗 Connect with Confidence: Elevate your 3D printing game!

## Quick Answers

- **What is this?** #4-40 x 0.135" Qty 50 Threaded Heat-Set Inserts used for connecting 3D printed and injection molded parts. by virtjoule
- **How much does it cost?** € 0.24 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/82809194-4-40-x-0-135-qty-50-threaded-heat-set)

## Best For

- virtjoule enthusiasts

## Why This Product

- Trusted virtjoule brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **💪 Unmatched Strength:** Brass inserts provide a robust connection that outlasts traditional methods.
- • **🌟 Space-Saving Design:** Short length perfect for tight spaces, ensuring versatility in your projects.
- • **🔧 Effortless Assembly:** Easily connect and disconnect your 3D printed parts with precision.
- • **⚙️ Heat-Set Technology:** Designed for seamless installation with heat-set and ultrasonic methods.
- • **🛠️ Universal Compatibility:** Compatible with standard #4-40 machine screws found at any hardware store.

## Overview

The #4-40 x 0.135" Qty 50 Threaded Heat-Set Inserts by Virtjoule are essential for securely connecting 3D printed and injection molded parts. Made of durable brass, these inserts allow for easy assembly and disassembly, ensuring a strong bond that withstands repeated use. With a compact design tailored for limited spaces, they are perfect for any 3D printing enthusiast looking to enhance their projects.

## Description

Full description not available

## Features

- Brass inserts help you to connect your 3D printed parts and enclosures.
- Press into 3D printed parts with heated tip (Virtjoule installation tips ASIN: B078K72615 and B07GNX86BB). Tip with insert on it melts plastic and forms tight bond. You can then use a #4-40 machine screw giving a strong connection.
- Your 3D printed parts can be more easily assembled and disassembled multiple times. Placing a screw into regular plastic does not hold as well and will likely strip the plastic if done more than once, making it hard to reassemble with any connection strength.
- With a 0.135" length, these inserts are short and are most useful for parts that have limited space to mount or connect 3D printed objects. The #4-40 size allows for a small, but useful size machine screw that can be found at most hardware stores.
- Specifically designed for heat-set and ultrasonic usage with smaller bottom for ease of installation. Other inserts that have the same dimension top and bottom are designed for molding, not heat-set or ultrasonic.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Virtjoule |
| Item Weight | 0.422 ounces |
| Package Dimensions | 2.36 x 1.54 x 0.24 inches |
| Is Discontinued By Manufacturer | No |
| Size | #4-40 x 0.135" |
| Color | Brass |
| Material | Brass |
| Number Of Pieces | 50 |
| Measurement System | inch |
| Batteries Included? | No |
| Batteries Required? | No |

## Images

![#4-40 x 0.135" Qty 50 Threaded Heat-Set Inserts used for connecting 3D printed and injection molded parts. - Image 1](https://m.media-amazon.com/images/I/81x6-tiCnfL.jpg)
![#4-40 x 0.135" Qty 50 Threaded Heat-Set Inserts used for connecting 3D printed and injection molded parts. - Image 2](https://m.media-amazon.com/images/I/71c-QMvbwaL.jpg)
![#4-40 x 0.135" Qty 50 Threaded Heat-Set Inserts used for connecting 3D printed and injection molded parts. - Image 3](https://m.media-amazon.com/images/I/61xJnQH1LYL.jpg)
![#4-40 x 0.135" Qty 50 Threaded Heat-Set Inserts used for connecting 3D printed and injection molded parts. - Image 4](https://m.media-amazon.com/images/I/91ZRjSbEWIL.jpg)
![#4-40 x 0.135" Qty 50 Threaded Heat-Set Inserts used for connecting 3D printed and injection molded parts. - Image 5](https://m.media-amazon.com/images/I/91CjtjPAHOL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    : 0
  

*by W***R on Reviewed in the United States on December 20, 2020*

0 )

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Holds tight into PLA material.
  

*by J***N on Reviewed in the United States on March 11, 2019*

Easy to melt these into PLA with a soldering iron, very good hold.

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**Shop now:** [https://www.desertcart.hr/products/82809194-4-40-x-0-135-qty-50-threaded-heat-set](https://www.desertcart.hr/products/82809194-4-40-x-0-135-qty-50-threaded-heat-set)

---

*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-02-04*