---
product_id: 538416228
title: "420 Pcs Metric M3 Hex Socket Head Cap Screws Bolts and Nuts, Carbon Steel Hexagon Socket Head Cap Screws Assortment Kit for Furniture Repair, Plumbing, Construction"
brand: "bnnrjia"
price: "NT$807"
currency: TWD
in_stock: true
url: https://www.desertcart.tw/products/538416228-420-pcs-metric-m3-hex-socket-head-cap-screws-bolts
store_origin: TW
region: Taiwan
---

# 420 pcs Easy storage High strength 420 Pcs Metric M3 Hex Socket Head Cap Screws Bolts and Nuts, Carbon Steel Hexagon Socket Head Cap Screws Assortment Kit for Furniture Repair, Plumbing, Construction

**Brand:** bnnrjia
**Price:** NT$807
**Availability:** ✅ In Stock

## Summary

> 🔧 Fasten Your Future with Confidence!

## Quick Answers

- **What is this?** 420 Pcs Metric M3 Hex Socket Head Cap Screws Bolts and Nuts, Carbon Steel Hexagon Socket Head Cap Screws Assortment Kit for Furniture Repair, Plumbing, Construction by bnnrjia
- **How much does it cost?** NT$807 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/538416228-420-pcs-metric-m3-hex-socket-head-cap-screws-bolts)

## Best For

- bnnrjia enthusiasts

## Why This Product

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

## Key Features

- • **Comprehensive Set:** With 420 pieces, including various sizes and lock nuts, you’ll always have the right fastener at your fingertips for any task.
- • **Unmatched Durability:** Crafted from high-quality carbon steel, these bolts resist corrosion and deformation, ensuring longevity in any environment.
- • **Organized Convenience:** Stored in a transparent, compartmentalized box, find the right piece quickly and easily—no more digging through a messy toolbox!
- • **Precision Engineering:** The clean, accurate threads allow for effortless installation and a secure fit, minimizing wear and tear on your projects.
- • **Versatile Applications:** Perfect for everything from furniture repair to automotive needs, this kit is a go-to for professionals and DIY enthusiasts alike.

## Overview

This 420-piece Metric M3 Hex Socket Head Cap Screws and Nuts Assortment Kit is made from high-quality carbon steel, ensuring high strength and corrosion resistance. It features a well-organized storage solution for easy access and is suitable for a wide range of applications, making it an essential tool for both professionals and DIY enthusiasts.

## Description

420 Pcs Metric M3 Hex Socket Head Cap Screws Bolts and Nuts, Carbon Steel Hexagon Socket Head Cap Screws Assortment Kit for Furniture Repair, Plumbing, Construction

## Features

- Exquisite Material: These hex socket head bolts with nuts are made of high-quality carbon steel, high strength, high hardness, corrosion resistance and rust resistance, not easy to break or deform, can maintain good performance in harsh environments, and are durable.
- Hex Hecket Head Design: The thread of the inner hexagon bolt is very clean and accurate, can be easily wrenched with a hexagonal wrench, and is not easy to deform and slide during rolling. The nut can make the installation more precise, thereby reducing the pressure and protecting the parts and screws.
- Wide Application: Our hex socket head screw set set is suitable for furniture repair, plumbing, construction, automotive field, industrial machinery, bicycles, boats, communication equipment, electronics, household appliances, 3D printer components and other DIY projects, etc. Ideal for professionals, hobbyists, repairmen, carpenters, landlords, repairers, and more.
- Easy to Store: All allen key bolt sets are stored in a transparent and sturdy storage box with compartments. The hexagon bolts with lock nut are stored separately, well organized, easy to carry and find. There is no confusion during transportation and it is convenient to use.
- Package Includes: You will receive 50 pcs m3x6mm, 40 pcs m3x8mm, 30 pcs m3x10mm, 30 pcs m3x12mm, 30 pcs m3x16mm, 30 pcs m3x20mm, 210 pcs m3 nuts, a total of 420 pcs, sufficient quantity is enough to meet your needs in different occasions, and it is a must-have hands-on hardware for the family.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Fastener type | Hex Socket Head |
| Head style | Hex, Socket Cap |
| Shape | Cylindrical |
| Item diameter | 3 Millimetres |
| Thread size | M3 |
| Number of pieces | 420 |
| Maximum shear strength | [ESTIMATE] 500-800 MPa |
| Manufacturer | Bnnrjia |
| Part number | ECT-040 |
| Item Weight | 270 g |
| Item model number | ECT-040 |
| Head Style | Hex, Socket Cap |
| Cutting Diameter | 3 Millimetres |
| Measurement System | Metric |
| Batteries included? | No |
| Batteries Required? | No |

## Product Details

- **Size:** M3
- **Colour:** Black
- **Material:** Carbon Steel
- **Brand:** Bnnrjia
- **Item dimensions L x W x H:** 13 x 7 x 2.3 centimetres

## Images

![420 Pcs Metric M3 Hex Socket Head Cap Screws Bolts and Nuts, Carbon Steel Hexagon Socket Head Cap Screws Assortment Kit for Furniture Repair, Plumbing, Construction - Image 1](https://m.media-amazon.com/images/I/81pE7-3l3sL.jpg)

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.tw/products/538416228-420-pcs-metric-m3-hex-socket-head-cap-screws-bolts](https://www.desertcart.tw/products/538416228-420-pcs-metric-m3-hex-socket-head-cap-screws-bolts)

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*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-02-08*