---
product_id: 615044055
title: "420pcs M3 Screw Kit, Premium Hex Socket Head Cap Screw Assortment with Nuts and Washers, M3x6mm /8mm /10mm /12mm /16mm /20mm /25mm (Silver)"
brand: "carlwin"
price: "NT$1338"
currency: TWD
in_stock: true
reviews_count: 8
url: https://www.desertcart.tw/products/615044055-420pcs-m3-screw-kit-premium-hex-socket-head-cap-screw
store_origin: TW
region: Taiwan
---

# 420pcs total for ultimate variety Includes nuts & washers for all-in-one convenience 7 precise M3 screw lengths for every project 420pcs M3 Screw Kit, Premium Hex Socket Head Cap Screw Assortment with Nuts and Washers, M3x6mm /8mm /10mm /12mm /16mm /20mm /25mm (Silver)

**Brand:** carlwin
**Price:** NT$1338
**Availability:** ✅ In Stock

## Summary

> 🔧 Screw it right, screw it tight — your ultimate M3 kit awaits!

## Quick Answers

- **What is this?** 420pcs M3 Screw Kit, Premium Hex Socket Head Cap Screw Assortment with Nuts and Washers, M3x6mm /8mm /10mm /12mm /16mm /20mm /25mm (Silver) by carlwin
- **How much does it cost?** NT$1338 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/615044055-420pcs-m3-screw-kit-premium-hex-socket-head-cap-screw)

## Best For

- carlwin enthusiasts

## Why This Product

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

## Key Features

- • **Organized & Ready:** Compact storage box keeps your kit neat, accessible, and travel-ready.
- • **Unmatched Versatility:** From 3D printing to woodworking, tackle any project with confidence.
- • **Hex Socket Head Design:** Effortless tightening with standard hex wrenches for professional results.
- • **Perfect Fit Every Time:** Seven M3 screw sizes ensure you never compromise on precision.
- • **Premium Stainless Steel:** Corrosion-resistant strength that lasts through every build.

## Overview

This 420-piece M3 screw kit features premium stainless steel hex socket head screws in seven popular lengths, complete with matching nuts and washers. Designed for durability and corrosion resistance, it’s perfect for professionals and DIYers alike, neatly organized in a portable storage box for easy access and project-ready convenience.

## Description

Premium M3 Hex Socket Head Cap Screw Assortment with Nuts and WashersThis kit contains 420 high-quality M3 hex socket head cap screws made of stainless steel for superior strength, corrosion resistance, and durability. The screws come in a variety of sizes to meet your different needs, including M3x6mm, M3x8mm, M3x10mm, M3x12mm, M3x16mm, M3x20mm, and M3x25mm, with 20 pieces of each size for a total of 140 screws.The hex socket head design allows for easy tightening with a hex wrench. These screws are versatile and can be used for a variety of applications, including 3D printing, woodworking, machinery repair, DIY projects, and more.The kit also includes 140 M3 nuts and 140 M3 flat washers to provide you with a complete solution for your fastening needs. All screws, nuts, and washers are neatly organized in a plastic storage box for easy access and storage.Benefits of this kit include:Premium materials: high strength, corrosion resistance, durabilityComplete specifications: meet different needsEasy to use: convenient installationWide range of applications: suitable for various projectsConvenient storage: easy to store and organizeIf you are looking for a high-quality M3 screw kit, this 420-piece kit is the perfect choice for you.

## Features

- Premium Quality: Made of high-quality stainless steel for superior strength, corrosion resistance, and durability.
- Complete Specifications: Includes 7 popular screw sizes (M3x6mm, M3x8mm, M3x10mm, M3x12mm, M3x16mm, M3x20mm, M3x25mm), 20pcs each size, 140pcs screws in total.
- Easy to Use: Hex socket head design for easy tightening with a hex wrench.
- Versatile: Suitable for various applications, including 3D printing, woodworking, machinery repair, DIY projects, etc.
- Convenient Storage: Comes with a plastic storage box for easy storage and organization.

## Product Details

- **Size:** M3
- **Color:** Silver
- **Material:** Stainless Steel
- **Brand:** CARLWIN
- **Item dimensions L x W x H:** 5 x 3.5 x 0.7 inches

## Images

![420pcs M3 Screw Kit, Premium Hex Socket Head Cap Screw Assortment with Nuts and Washers, M3x6mm /8mm /10mm /12mm /16mm /20mm /25mm (Silver) - Image 1](https://m.media-amazon.com/images/I/71Rvb9ypZ3L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ I already had some
*by B***B on January 12, 2025*

Made a mistake and ordered these, but found my other ones after I opened the package, no sweat, they will be used.

### ⭐⭐⭐⭐⭐ Good quality screws
*by A***K on September 3, 2024*

I needed about eight M3 stainless button head hex socket screws to fasten some replacement wires in my Bellemain cheese slicers. My slicers' came with bad quality M2.5 screws and the new wires had M3 tapped holes so the old screws would not fit anyway. I will probably never use over 400 of these pieces, but the price was quite acceptable for the job at hand. I am looking for other uses for these screws, nuts and washers and already have one in mind.The kit does not include a 2 mm hex key, but they are easily available. If you need a set of hex keys, whether inch or metric, I recommend the Bondhus (USA) brand as being one of the best on the market. Their keys with the ball end can be very useful for screws with bad access.

### ⭐⭐⭐⭐⭐ Amazing!
*by J***Z on November 27, 2024*

Great for purses. Just the exact size i needed

## Frequently Bought Together

- CARLWIN 420pcs M3 Screw Kit, Premium M3 Hex Socket Head Cap Screw Assortment with Nuts and Washers, M3 x 6mm /8mm /10mm /12mm /16mm /20mm /25mm (Silver)
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**Shop now:** [https://www.desertcart.tw/products/615044055-420pcs-m3-screw-kit-premium-hex-socket-head-cap-screw](https://www.desertcart.tw/products/615044055-420pcs-m3-screw-kit-premium-hex-socket-head-cap-screw)

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*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-03-21*