---
product_id: 329235312
title: "DYWISHKEY 200 Pieces M3 x 30mm/35mm/40mm/45mm/50mm, 12.9 Grade Alloy Steel Hex Socket Head Cap Bolts Screws Nuts Kit with Hex Wrench"
brand: "dywishkey"
price: "¥8951"
currency: JPY
in_stock: true
reviews_count: 5
category: "Dywishkey"
url: https://www.desertcart.jp/products/329235312-dywishkey-200-pieces-m3-x-30mm-35mm-40mm-45mm-50mm
store_origin: JP
region: Japan
---

# ±0.01mm precision sizing 200 pcs versatile kit 12.9 grade alloy steel strength DYWISHKEY 200 Pieces M3 x 30mm/35mm/40mm/45mm/50mm, 12.9 Grade Alloy Steel Hex Socket Head Cap Bolts Screws Nuts Kit with Hex Wrench

**Brand:** dywishkey
**Price:** ¥8951
**Availability:** ✅ In Stock

## Summary

> 🔧 Elevate your projects with precision and power — don’t get left behind!

## Quick Answers

- **What is this?** DYWISHKEY 200 Pieces M3 x 30mm/35mm/40mm/45mm/50mm, 12.9 Grade Alloy Steel Hex Socket Head Cap Bolts Screws Nuts Kit with Hex Wrench by dywishkey
- **How much does it cost?** ¥8951 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/329235312-dywishkey-200-pieces-m3-x-30mm-35mm-40mm-45mm-50mm)

## Best For

- dywishkey enthusiasts

## Why This Product

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

## Key Features

- • **Built to Endure:** Crafted from premium 12.9 grade alloy steel for superior strength and corrosion resistance in any environment.
- • **Precision Perfected:** Engineered with a tight ±0.01mm tolerance for flawless fit every time.
- • **All-in-One Versatility:** Includes 200 pieces across five lengths (30-50mm) plus 100 nuts—ready for any project.
- • **Pro-Grade Compatibility:** Ideal for precision machinery, electronics, 3D printing, and custom builds—your go-to fastener kit.
- • **Organized for Efficiency:** Smartly packaged in a durable box with separated compartments to keep your workspace clutter-free.

## Overview

The DYWISHKEY 200-piece M3 hex socket head cap bolt and nut kit features high-strength 12.9 grade alloy steel fasteners in five precise lengths (30-50mm) with ±0.01mm accuracy. Designed for durability and corrosion resistance, this professional-grade set is neatly organized for easy access and perfect for precision machinery, electronics, and custom builds.

## Description

【Specifications:】 - Color: Black - Quantity: 200 Pieces - Material: 12.9 Grade Alloy Steel - Type: Hex Socket Head Cap Head Bolts Screws - Sizes: M3 x 30mm/35mm/40mm/45mm/50mm 【Features:】 1, 12.9 grade alloy steel with superior rust resistant ensure long lasting results，corrosion resistance, anti-aging, good toughness 2, This kit can be widely used in all kinds of precision machinery, classified instruments, instruments, electronic products, household appliances, communication products, locks, lamps, lights, toys, etc. 【Package Included:】 M3 x 30mm------------------------20 PCS M3 x 35mm------------------------20 PCS M3 x 40mm------------------------20 PCS M3 x 45mm------------------------20 PCS M3 x 50mm------------------------20 PCS M3 Nuts----------------------------100 PCS 【Total: 200 Pieces, 12.9 Grade M3 Alloy Steel Hex Socket Head Cap Bolts Screws Nuts】 【Note: Small parts, keep away from children under 6 years old.】

Review: I recently purchased the DYWISHKEY 200-piece set of M3 stainless steel hex screws, and I am thoroughly impressed with their quality. This kit, featuring screws in lengths of 30mm, 35mm, 40mm, 45mm, and 50mm, is exceptionally well-crafted. The precision and quality of these screws are evident right out of the box. Each piece is uniform in size and finish, which speaks volumes about the care and quality control put into this product. The stainless steel 304 material is durable and gives me confidence in the longevity and strength of these fasteners. What I appreciate most about this kit is its versatility. The variety of lengths makes it suitable for a wide range of applications, and I found it perfect for multiple projects, including some involving intricate assembly. In summary, the DYWISHKEY 200-piece stainless steel hex screw kit is a fantastic find. Its high-quality craftsmanship, combined with the variety of sizes, makes it an essential kit for anyone needing reliable and well-made fasteners. Highly recommended for both professional and DIY use.
Review: This bolt and screw kit has been ideal for my custom builds. The M3 size fits perfectly with my 3D printing projects and other mechanical tasks. The variety of lengths included allows for flexibility in different applications, and the hex wrench makes assembly easy. The quality is excellent, and everything comes neatly organized, making it simple to find the right piece when needed.

## Features

- 【SIZES】--- M3 x 30mm/35mm/40mm/45mm/50mm Hex Socket Head Cap Bolts Screws Nuts. According with standardized metric system. And the average error is less than 0.01mm. Different sizes can meet your different using.
- 【MATERIAL】--- Made of high quality 12.9 grade alloy steel, which features is strength and offers good corrosion resistance in bad environment like high temperature, cold weather, and high humidity areas. They have superior rust resistance and the excellent of oxidation resistance, which can ensure long time using.
- 【PACKAGE】--- All of Screws and Nuts are packed in a durable and sturdy Box to efficiently bear the weight of the whole package. In order to avoid the screws being scattered or lost during use, we specially package for each different type of screws for your convenience and storage. Not only give you the best product, but also the best storage system for them.
- International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07VRC6DHD |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 1,082,029 in DIY & Tools ( See Top 100 in DIY & Tools ) 7,369 in Nut & Bolt Sets |
| Customer Reviews | 4.7 4.7 out of 5 stars (601) |
| Cutting Diameter | 3 Millimetres |
| Date First Available | 29 July 2019 |
| Finish | Zinc Plating |
| Finish type | Zinc Plating |
| Head Style | Socket |
| Head style | Socket |
| Item Weight | 300 g |
| Item diameter | 3 Millimetres |
| Item model number | DIY---Black---YUANZHUTOU---200P---M3---1 |
| Manufacturer | DYWISHKEY |
| Measurement System | Metric |
| Number of items | 200 |
| Number of pieces | 200 |
| Part number | DIY---Black---YUANZHUTOU---200P---M3---1 |
| Shape | Hexagonal |
| Style | 200 PCS |
| Thread size | M3 |
| UPC | 659499168083 |

## Product Details

- **Brand:** DYWISHKEY
- **Colour:** Black
- **Fastener type:** Hex
- **Material:** Alloy Steel
- **Size:** M3 x 30mm/35mm/40mm/45mm/50mm

## Images

![DYWISHKEY 200 Pieces M3 x 30mm/35mm/40mm/45mm/50mm, 12.9 Grade Alloy Steel Hex Socket Head Cap Bolts Screws Nuts Kit with Hex Wrench - Image 1](https://m.media-amazon.com/images/I/819MSnRaGWL.jpg)
![DYWISHKEY 200 Pieces M3 x 30mm/35mm/40mm/45mm/50mm, 12.9 Grade Alloy Steel Hex Socket Head Cap Bolts Screws Nuts Kit with Hex Wrench - Image 2](https://m.media-amazon.com/images/I/71L8e3ymn4L.jpg)
![DYWISHKEY 200 Pieces M3 x 30mm/35mm/40mm/45mm/50mm, 12.9 Grade Alloy Steel Hex Socket Head Cap Bolts Screws Nuts Kit with Hex Wrench - Image 3](https://m.media-amazon.com/images/I/61pYYP+37IL.jpg)
![DYWISHKEY 200 Pieces M3 x 30mm/35mm/40mm/45mm/50mm, 12.9 Grade Alloy Steel Hex Socket Head Cap Bolts Screws Nuts Kit with Hex Wrench - Image 4](https://m.media-amazon.com/images/I/714WJ55zZlL.jpg)
![DYWISHKEY 200 Pieces M3 x 30mm/35mm/40mm/45mm/50mm, 12.9 Grade Alloy Steel Hex Socket Head Cap Bolts Screws Nuts Kit with Hex Wrench - Image 5](https://m.media-amazon.com/images/I/71m6A7AWWAL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by K***. on 10 December 2023*

I recently purchased the DYWISHKEY 200-piece set of M3 stainless steel hex screws, and I am thoroughly impressed with their quality. This kit, featuring screws in lengths of 30mm, 35mm, 40mm, 45mm, and 50mm, is exceptionally well-crafted. The precision and quality of these screws are evident right out of the box. Each piece is uniform in size and finish, which speaks volumes about the care and quality control put into this product. The stainless steel 304 material is durable and gives me confidence in the longevity and strength of these fasteners. What I appreciate most about this kit is its versatility. The variety of lengths makes it suitable for a wide range of applications, and I found it perfect for multiple projects, including some involving intricate assembly. In summary, the DYWISHKEY 200-piece stainless steel hex screw kit is a fantastic find. Its high-quality craftsmanship, combined with the variety of sizes, makes it an essential kit for anyone needing reliable and well-made fasteners. Highly recommended for both professional and DIY use.

### ⭐⭐⭐⭐⭐ Review
*by M***U on 9 August 2024*

This bolt and screw kit has been ideal for my custom builds. The M3 size fits perfectly with my 3D printing projects and other mechanical tasks. The variety of lengths included allows for flexibility in different applications, and the hex wrench makes assembly easy. The quality is excellent, and everything comes neatly organized, making it simple to find the right piece when needed.

### ⭐⭐⭐⭐⭐ Review
*by Z***M on 13 August 2025*

Fine quality and works well. Came in handy for a few 3d printing projects.

## Frequently Bought Together

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-10*