---
product_id: 662248766
title: "1/4-20x12.7x8 22pcs"
brand: "zwmssll"
price: "₹ 1705"
currency: INR
in_stock: true
reviews_count: 11
category: "Zwmssll"
url: https://www.desertcart.in/products/662248766-1-4-20x12-7x8-22pcs
store_origin: IN
region: India
---

# 22-piece organized set Heat resistant >300°C Precision knurled grip 1/4-20x12.7x8 22pcs

**Brand:** zwmssll
**Price:** ₹ 1705
**Availability:** ✅ In Stock

## Summary

> 🛠️ Upgrade your 3D prints with brass inserts that mean business!

## Quick Answers

- **What is this?** 1/4-20x12.7x8 22pcs by zwmssll
- **How much does it cost?** ₹ 1705 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.in](https://www.desertcart.in/products/662248766-1-4-20x12-7x8-22pcs)

## Best For

- zwmssll enthusiasts

## Why This Product

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

## Key Features

- • **Effortless Installation:** Heat-set inserts install easily with a soldering iron—no countersinking needed, saving you time.
- • **Versatile Compatibility:** Works seamlessly with all major thermoplastics like PLA, ABS, PETG, and more for diverse projects.
- • **Premium Brass Durability:** Corrosion-resistant, lead-free brass guarantees long-lasting strength and industrial-grade reliability.
- • **Thermal Toughness Unmatched:** Withstands extreme heat up to 300°C, perfect for intense 3D printing workflows.
- • **Torque-Ready Knurled Design:** 46° angled knurling ensures superior grip and prevents thread slippage under pressure.

## Overview

ZWMSSLL 1/4'' Threaded Inserts are a 22-piece set of high-quality, lead-free brass heat-set nuts designed for plastic and 3D printed components. Featuring precision 46° knurling for enhanced torque resistance and thermal durability beyond 300°C, these inserts install easily with common soldering tools and fit all major thermoplastics. Ideal for professionals seeking reliable, reusable, and corrosion-resistant fastening solutions in advanced manufacturing and prototyping.

## Description

Zwmssll 1/4'' Threaded Inserts,1/4-20 Heat Set Insert,22 Pieces 1/4 20x12.7x8 Knurled Nuts,Brass Threaded Inserts for Plastic and 3D Printing Components: desertcart.com: Industrial & Scientific

Review: Fixed Zodiac Jandy Backplate - Worked great to fix Zodiac Jandy R0445200 Backplate that had thread inserts come out.
Review: Work Well, longer than other options - I got these to use with my 3D printed parts. They work great and are bigger than the other ones I was using. I didn't realize how small my old ones were until I recieved these. I haven't had one fail yet!

## Features

- 【1/4 Thread Inserts For Your 3D Printed Parts】- The ZWMSSLL threaded insert are lead free,22 pieces 1/4 -20x12.7x8mm Insert nuts.Different sizes of threaded inserts are individually packaged in thickened PE bags,Corresponding labels for the threaded inserts help you quickly find the desired type,Convenient use and storage，significantly boosting your work efficiency.
- 【High-Quality Threaded Inserts】- Crafted from top-tier brass materials, these threaded inserts boast outstanding thermal conductivity, corrosion resistance, and durability. They exhibit remarkable resistance against breakage and deformation. Withstanding temperatures exceeding 300°C / 573°F, they easily endure the harsh heat generated during plastic thermal shaping processes.
- 【Precision Craftsmanship】- The 46-degree angled knurling significantly enhances torque resistance and tensile strength, ensuring a stronger fastening. High-precision and clear threading ensures stability and reliability, preventing thread slippage during rotation. The embedded nuts feature guiding elements, eliminating the need for countersinking or recessing, making your work more convenient and efficient.
- 【Easy to Use】- With a common soldering iron, you can easily place them into a blind or through hole of 3D prints.Brass threaded inserts can be installed into components of a 4D printer through heating or ultrasonic methods, or molded during the injection process. They are also suitable for circuit board assembly and the electronics field. The reusability of the insert nut is also possible by carefully removing them from the pressure part when they are no longer needed.
- 【Wide Application】 - These inserts are designed for use with all thermoplastics, including materials like PLA, PETG, ABS, PPS, PP, and others. Whether installing them in 4D printed objects, injection-molded plastic parts, automotive plastic casings, or laptop shells, these inserts offer reliable and durable solutions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D3KW9XW5 |
| Best Sellers Rank | #20,969 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #33 in Nut Inserts |
| Brand | ZWMSSLL |
| Color | UNC Threaded Insert |
| Compatible Groove Diameter | 0.12 inches |
| Customer Reviews | 4.8 out of 5 stars 72 Reviews |
| Drive Style | Spline |
| Exterior Finish | Brass |
| Fastener Type | Insert |
| Finish Types | Brass |
| Grade Rating | industrial |
| Inside Thread Size | 1/4 inch |
| Item Diameter | 0.25 inches |
| Item Dimensions | 0.31 x 0.31 x 12.7 inches |
| Item Weight | 0.59 g |
| Manufacturer | ZWMSSLL |
| Material | Brass |
| Material Type | Brass |
| Metal Type | Brass |
| Model | 1/4-20x12.7x8 Threaded Inserts |
| Number Of Items | 22 |
| Number of Pieces | 22 |
| Outside Diameter | 7.15 inches |
| Part Number | 425Pcs Metric Knurled Nuts Kit |
| Screw Head Style | Square |
| Set Name | 1/4-20x12.7x8 Brass Threaded Insert Set (22 Pieces) |
| Size Name | 1/4''-20 (22pcs) |
| Thread Class | Class 2A |
| Thread Coverage | Fully Threaded |
| Thread Size | 1/4"-20 |
| Thread Style | Right Hand |
| Thread Type | Unified National Coarse (Unc) |

## Product Details

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

## Images

![1/4-20x12.7x8 22pcs - Image 1](https://m.media-amazon.com/images/I/719mVAwPKQL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fixed Zodiac Jandy Backplate
*by H***N on July 2, 2026*

Worked great to fix Zodiac Jandy R0445200 Backplate that had thread inserts come out.

### ⭐⭐⭐⭐⭐ Work Well, longer than other options
*by A***R on July 9, 2026*

I got these to use with my 3D printed parts. They work great and are bigger than the other ones I was using. I didn't realize how small my old ones were until I recieved these. I haven't had one fail yet!

### ⭐⭐⭐⭐⭐ Useful set of inserts
*by E***R on April 28, 2026*

Excellent set of inserts. They work well, easy to install.

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**Shop now:** [https://www.desertcart.in/products/662248766-1-4-20x12-7x8-22pcs](https://www.desertcart.in/products/662248766-1-4-20x12-7x8-22pcs)

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*Product available on Desertcart India*
*Store origin: IN*
*Last updated: 2026-08-22*