---
product_id: 670662367
title: "40pcs 1/4\" Brass Threaded Inserts, UNC Knurled Nuts, 1/4\"-20x8x8 Heat Set Insert for 3D Printing Components and Plastic Parts"
brand: "soso-bantian1989"
price: "€ 20.34"
currency: EUR
in_stock: true
reviews_count: 13
category: "So So Ban Tian1989"
url: https://www.desertcart.at/products/670662367-40pcs-1-4-brass-threaded-inserts-unc-knurled-nuts-1
store_origin: AT
region: Austria
---

# Heat-set installation, no special tools 1/4"-20 UNC fully threaded strong hold 40pcs precision brass inserts 40pcs 1/4" Brass Threaded Inserts, UNC Knurled Nuts, 1/4"-20x8x8 Heat Set Insert for 3D Printing Components and Plastic Parts

**Brand:** soso-bantian1989
**Price:** € 20.34
**Availability:** ✅ In Stock

## Summary

> 🔧 Upgrade your 3D prints with brass precision that sticks!

## Quick Answers

- **What is this?** 40pcs 1/4" Brass Threaded Inserts, UNC Knurled Nuts, 1/4"-20x8x8 Heat Set Insert for 3D Printing Components and Plastic Parts by soso-bantian1989
- **How much does it cost?** € 20.34 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/670662367-40pcs-1-4-brass-threaded-inserts-unc-knurled-nuts-1)

## Best For

- soso-bantian1989 enthusiasts

## Why This Product

- Trusted soso-bantian1989 brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Universal Plastic Compatibility:** Seamlessly works with PLA, ABS, PETG, and more for versatile 3D printing fixes
- • **Effortless Heat-Set Installation:** Embed with a soldering iron or ultrasonic tool—no specialized gear needed
- • **Knurled Design for Superior Grip:** Prevents stripping and ensures a rock-solid, stable connection every time
- • **Bulk Pack for Continuous Projects:** 40 inserts in a recyclable box—always be ready to upgrade or repair
- • **Industrial-Grade Brass Durability:** Corrosion-resistant and built to last indoors or outdoors

## Overview

This set of 40 brass threaded inserts features 1/4"-20 UNC knurled nuts designed for heat-set installation into thermoplastics like PLA and ABS. Engineered for high thermal conductivity and corrosion resistance, these inserts provide a durable, stable threaded connection ideal for 3D printing components and plastic parts. Easy to install with common soldering irons or ultrasonic tools, they deliver professional-grade performance without the need for specialized equipment.

## Description

40pcs 1/4" Brass Threaded Inserts, UNC Knurled Nuts, 1/4"-20x8x8 Heat Set Insert for 3D Printing Components and Plastic Parts: desertcart.com: Industrial & Scientific

Review: Fix the broken thread insert on my ring light - These fixed a broken brass insert for my ring light. Perfect fit and size. Good grip in the plastic but added some super glue to make sure it was secure. The thread is exactly what I needed for all of my tripod mounts. Functions great. Easy to use and good quality.
Review: Simple and Perfect - Hot brass go in the 3D print, cold brass no come out. Used for a homebuild with soldering iron install into PETG with absolutely no issue. Perfect fit, threading, and quality.

## Features

- Superior-Quality Brass Heat Set Insert: Designed specifically for 3D Printing Applications and All Thermoplastics
- High Tightening Hold: Stable Connection and not Prone to Strip, Practical Knurled Thread Insert Nuts
- Long-Lasting Durability: High Thermal Conductivity and Corrosion-Resistant, Suitable for Indoor or Outdoor Applications
- Wide Compatibility: Works with Variety of Plastics including PLA, ABS, PPS, PP, and PETG materials
- Easy Application: Insert by Ultrasonic or Heat Embedding using Common Soldering Iron, Not Require Special Tool for Installation
- Thoughtful Packaging: Comes with Clear PE Bag and Recyclable PP Box for organized storage
- Complete Specifications: 40pcs Insert Nuts with 1/4 inch-20 Internal Thread, 8mm Length, 8mm Outer Diameter

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CZPD55C1 |
| Best Sellers Rank | #18,744 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #29 in Nut Inserts |
| Brand | SoSo-BanTian1989 |
| Color | Gold |
| Compatible Groove Diameter | 0.25 Inches |
| Customer Reviews | 4.8 4.8 out of 5 stars (178) |
| Drive Style | Spline |
| Exterior Finish | Brass |
| Fastener Type | Insert |
| Finish Types | Brass |
| Grade Rating | industrial |
| Inside Thread Size | 1/4"-20 |
| Item Diameter | 8 Millimeters |
| Item Dimensions | 0.31 x 0.31 x 0.31 inches |
| Item Weight | 50 Grams |
| Manufacturer | SoSo-BanTian1989 |
| Material Type | Brass |
| Metal Type | Brass |
| Number of Pieces | 40 |
| Part Number | Heat Set Insert |
| Screw Head Style | Screw |
| Size Name | 1/4"-20x8-40pcs |
| Thread Class | Class 2A |
| Thread Coverage | Fully Threaded |
| Thread Size | 1/4"-20 |
| Thread Style | Right Hand |
| Thread Type | Unified National |

## Product Details

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

## Images

![40pcs 1/4" Brass Threaded Inserts, UNC Knurled Nuts, 1/4"-20x8x8 Heat Set Insert for 3D Printing Components and Plastic Parts - Image 1](https://m.media-amazon.com/images/I/71VoNWxxjfL.jpg)
![40pcs 1/4" Brass Threaded Inserts, UNC Knurled Nuts, 1/4"-20x8x8 Heat Set Insert for 3D Printing Components and Plastic Parts - Image 2](https://m.media-amazon.com/images/I/71ip-jWYjmL.jpg)
![40pcs 1/4" Brass Threaded Inserts, UNC Knurled Nuts, 1/4"-20x8x8 Heat Set Insert for 3D Printing Components and Plastic Parts - Image 3](https://m.media-amazon.com/images/I/71dcKL3+wBL.jpg)
![40pcs 1/4" Brass Threaded Inserts, UNC Knurled Nuts, 1/4"-20x8x8 Heat Set Insert for 3D Printing Components and Plastic Parts - Image 4](https://m.media-amazon.com/images/I/71r9gJ-hAnL.jpg)
![40pcs 1/4" Brass Threaded Inserts, UNC Knurled Nuts, 1/4"-20x8x8 Heat Set Insert for 3D Printing Components and Plastic Parts - Image 5](https://m.media-amazon.com/images/I/71CcoGF7--L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fix the broken thread insert on my ring light
*by G***Y on September 26, 2025*

These fixed a broken brass insert for my ring light. Perfect fit and size. Good grip in the plastic but added some super glue to make sure it was secure. The thread is exactly what I needed for all of my tripod mounts. Functions great. Easy to use and good quality.

### ⭐⭐⭐⭐⭐ Simple and Perfect
*by M***J on February 2, 2026*

Hot brass go in the 3D print, cold brass no come out. Used for a homebuild with soldering iron install into PETG with absolutely no issue. Perfect fit, threading, and quality.

### ⭐⭐⭐⭐⭐ Perfect for DIY projects and 3D prints!
*by J***. on February 14, 2026*

These worked fantastic with my heat press! They fit a standard camera mount. I personally used them for a DIY SteamVR tracker project with a 3D print and they are shockingly durable!

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**Shop now:** [https://www.desertcart.at/products/670662367-40pcs-1-4-brass-threaded-inserts-unc-knurled-nuts-1](https://www.desertcart.at/products/670662367-40pcs-1-4-brass-threaded-inserts-unc-knurled-nuts-1)

---

*Product available on Desertcart Austria*
*Store origin: AT*
*Last updated: 2026-04-23*