---
product_id: 7730490
title: "Heli-Coil 5521-6 3/8-16 Inch Coarse Thread Repair Kit"
brand: "helicoil"
price: "$89.94"
currency: USD
in_stock: true
url: https://www.desertcart.ec/products/7730490-heli-coil-5521-6-3-8-16-inch-coarse-thread
store_origin: EC
region: Ecuador
---

# Manufactured in China Includes 12 inserts 3/8-16 thread size Heli-Coil 5521-6 3/8-16 Inch Coarse Thread Repair Kit

**Brand:** helicoil
**Price:** $89.94
**Availability:** ✅ In Stock

## Summary

> 🔧 Fix it like a pro, without the hassle!

## Quick Answers

- **What is this?** Heli-Coil 5521-6 3/8-16 Inch Coarse Thread Repair Kit by helicoil
- **How much does it cost?** $89.94 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/7730490-heli-coil-5521-6-3-8-16-inch-coarse-thread)

## Best For

- helicoil enthusiasts

## Why This Product

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

## Key Features

- • **📏 Compact Design:** Lightweight at just 4 ounces, perfect for on-the-go repairs.
- • **🔒 Durable Quality:** Crafted from high-quality materials for long-lasting performance.
- • **🛠️ Complete Kit:** Everything you need: 12 inserts, tap, and installation tool included.
- • **🔩 Effortless Repairs:** Transform damaged threads into robust connections with ease.
- • **📚 User-Friendly Instructions:** Step-by-step guide ensures even novices can achieve professional results.

## Overview

The Heli-Coil 5521-6 3/8-16 Inch Coarse Thread Repair Kit is a comprehensive solution for repairing stripped or damaged threads. This kit includes 12 high-quality inserts, a Heli-Coil tap, and an installation tool, all packaged conveniently for easy use. Weighing only 4 ounces and featuring user-friendly instructions, it's designed for both professionals and DIY enthusiasts looking to restore functionality to their equipment effortlessly.

## Description

Heli-Coil 5521-6 3/8-16 Inch Coarse Thread Repair Kit

## Features

- The product is 3/8-16thread repair kit
- Easy and simple use kit
- The product is manufactured in china
- Includes 12 inserts, complete instructions, Heli-Coil tap and installation tool
- Used for repairing tapped holes
- Made from high quality material
- Comes in carded packing
- Easy to use
- Includes 12 inserts, complete instructions, Heli-Coil tap and installation tool
- Used for repairing tapped holes
- Made from high quality material
- Comes in carded packing

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Heli-Coil |
| Brand | Helicoil |
| Model | 5521-6 |
| Item Weight | 4 ounces |
| Product Dimensions | 5.8 x 0.6 x 3.6 inches |
| Country of Origin | China |
| Item model number | 5521-6 |
| Is Discontinued By Manufacturer | No |
| Exterior | Smooth |
| Manufacturer Part Number | 5521-6 |
| OEM Part Number | 5521-6 |

## Images

![Heli-Coil 5521-6 3/8-16 Inch Coarse Thread Repair Kit - Image 1](https://m.media-amazon.com/images/I/715tpMezVDL.jpg)

## Frequently Bought Together

- Heli-Coil 5521-6 3/8-16 Inch Coarse Thread Repair Kit
- Helicoil 5521-5 5/16-18 Inch Coarse Thread Repair Kit
- Helicoil 5521-4 1/4-20 Inch Coarse Thread Repair Kit

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**Shop now:** [https://www.desertcart.ec/products/7730490-heli-coil-5521-6-3-8-16-inch-coarse-thread](https://www.desertcart.ec/products/7730490-heli-coil-5521-6-3-8-16-inch-coarse-thread)

---

*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-03-01*