---
product_id: 602531620
title: "M3 Hex Socket Head Cap Screws Bolts and Nuts and Washers Assortment Kit, 750 Pcs Metric Allen Hex Socket Head Cap Screws Bolts, 12.9 Grade Alloy Steel, Fully Threaded, Black Oxide Finish (A)"
brand: "youyidun"
price: "10795 kr"
currency: ISK
in_stock: true
reviews_count: 5
category: "Youyidun"
url: https://www.desertcart.is/products/602531620-m3-hex-socket-head-cap-screws-bolts-and-nuts-washers
store_origin: IS
region: Iceland
---

# 750 pcs comprehensive kit Organized transparent storage 12.9 grade alloy steel strength M3 Hex Socket Head Cap Screws Bolts and Nuts and Washers Assortment Kit, 750 Pcs Metric Allen Hex Socket Head Cap Screws Bolts, 12.9 Grade Alloy Steel, Fully Threaded, Black Oxide Finish (A)

**Brand:** youyidun
**Price:** 10795 kr
**Availability:** ✅ In Stock

## Summary

> 🔧 Screw it right, screw it tight — the ultimate kit for every fix and build!

## Quick Answers

- **What is this?** M3 Hex Socket Head Cap Screws Bolts and Nuts and Washers Assortment Kit, 750 Pcs Metric Allen Hex Socket Head Cap Screws Bolts, 12.9 Grade Alloy Steel, Fully Threaded, Black Oxide Finish (A) by youyidun
- **How much does it cost?** 10795 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/602531620-m3-hex-socket-head-cap-screws-bolts-and-nuts-washers)

## Best For

- youyidun enthusiasts

## Why This Product

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

## Key Features

- • **Unmatched Durability:** Crafted from premium 12.9 grade alloy steel for superior corrosion, heat, and wear resistance—built to last through any project.
- • **All-in-One Versatility:** 750-piece assortment covers 10 screw sizes plus nuts and washers, perfect for everything from electronics to automotive repairs.
- • **Effortless Organization:** Comes in a sturdy, transparent compartmentalized box—find exactly what you need instantly, no more lost parts or wasted time.
- • **Precision Fit & Easy Installation:** Hex socket head design ensures smooth, slip-free tightening with a hex wrench, preventing damage and loosening over time.
- • **Professional Grade for Every Maker:** Trusted by hobbyists, woodworkers, and pros alike for reliable performance in demanding environments.

## Overview

This M3 Hex Socket Head Cap Screws Bolts and Nuts and Washers Assortment Kit includes 750 pieces of fully threaded, black oxide finished fasteners made from high-strength 12.9 grade alloy steel. Designed for corrosion and wear resistance, the kit features a wide range of screw lengths, nuts, and washers stored in a transparent organizer, making it ideal for professional and DIY applications across electronics, automotive, furniture, and mechanical repairs.

## Description

What are the advantages of our 12.9 grade alloy steel hex socket bolts assortment kit? 🔧 The hex head cap screw bolts and nut set are made of 12.9 grade high-quality alloy steel, which has good corrosion resistance, high temperature resistance and wear resistance, and is durable. 🔧 Black hex drive head nuts and bolts will both be placed in a clear plastic box with matching labels, easy to use and install. 🔧 The hexagonal socket cap design can be easily installed with a hexagonal wrench, and it is not easy to slip out. 🔧 Used in electronic products, electrical products, furniture, household appliances, bicycle, car, and motorcycle maintenance, mechanical equipment, ship accessories and other fields. Featurese: Material: Aloy Steel Color: Black Size: M3 Quantity: 750 Pcs Package Includes: 30 Pcs - M3x6mm 30 Pcs - M3x8mm 30 Pcs - M3x10mm 30 Pcs - M3x12mm 30 Pcs - M3x16mm 20 Pcs - M3x18mm 20 Pcs - M3x20mm 20 Pcs - M3x25mm 20 Pcs - M3x30mm 20 Pcs - M3x35mm 250 Pcs - M3 Nuts 250 Pcs - M3 Washers Warranty after sale: If you have any questions about the hex socket head cap bolts nuts washers assortment sets, please contact us in time, we will solve your questions ASAP. Warm Tips: Color may vary slightly from the online image due to your monitor colour settings, please refer to the actual product, thank you for your understanding.

Review: Perfect for my RC builds. Durable and hard to get stripped. Unlike the Philips screws and Nuts
Review: I have commented on this before to no avail, this product is misleading and labeled as m3 when in fact I received m4 this has caused so many issues please fix this

## Features

- Exquisite Material: The hex socket head cap screws bolts and nuts set are made of high-quality 12.9 grade alloy steel, which has good corrosion resistance, high temperature resistance, wear resistance, high hardness, oxidation resistance and durability, not easy to break or deform, and resistant to rust , can maintain good performance in harsh environments.
- Hex Socket Head Cap Design: Tight threads are clean, accurate, and smooth, not prone to warping during rolling. The Socket head cap design can be easily installed with a hexagonal wrench, and it is not easy to slip out. The combination of Washers and hex nuts can increase the contact area, reduce pressure, prevent loosening and protect parts.
- Easy to Store: All socket head screws and nuts and flat washers set are stored in a transparent and sturdy storage box with compartments. Hex socket cap head screws are stored separately, well organized, easy to carry and find. There is no confusion during transportation and it is convenient to use.
- Wide Range of Applications: Ideal for use by professionals, woodworkers, hobbyists, landlords, repairmen, and others. Suitable for electronic products, furniture installation and maintenance, household appliances, bicycles, automobiles, motorcycles and other vehicle maintenance, mechanical equipment, ship accessories and other fields.
- Package Includes: 750 pcs in total, including 30 pcs m3x6mm, 30 pcs m3x8mm, 30 pcs m3x10mm, 30 pcs m3x12mm, 30 pcs m3x16mm, 20 pcs m3x18mm, 20 pcs m3x20mm, 20 pcs m3x25mm, 20 pcs m3x30mm , 20 pcs m3x35mm, 250 pcs m3 nuts, 250 pcs m3 washers, rich in size and quantity, to meet your needs in different occasions and fields.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CMC3RCVX |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 1,164,545 in DIY & Tools ( See Top 100 in DIY & Tools ) 90,253 in Nails, Screws & Fasteners |
| Customer Reviews | 4.6 4.6 out of 5 stars (147) |
| Date First Available | 13 Dec. 2023 |
| Finish | Black Oxide |
| Finish type | Black Oxide |
| Head Style | Flat, Hex, Socket Cap |
| Head style | Flat, Hex, Socket Cap |
| Item Package Quantity | 1 |
| Item Weight | 449 g |
| Manufacturer | CHINA |
| Manufacturer reference | 1 |
| Number of pieces | 801 |
| Package Dimensions | 17.4 x 9.8 x 2.11 cm; 449 g |
| Part number | 1 |
| Shape | Cylindrical, Hexagonal |

## Product Details

- **Brand:** YOUYIDUN
- **Colour:** A
- **Fastener type:** Variety Pack
- **Material:** Alloy Steel
- **Size:** M3

## Images

![M3 Hex Socket Head Cap Screws Bolts and Nuts and Washers Assortment Kit, 750 Pcs Metric Allen Hex Socket Head Cap Screws Bolts, 12.9 Grade Alloy Steel, Fully Threaded, Black Oxide Finish (A) - Image 1](https://m.media-amazon.com/images/I/712Tji4M57L.jpg)
![M3 Hex Socket Head Cap Screws Bolts and Nuts and Washers Assortment Kit, 750 Pcs Metric Allen Hex Socket Head Cap Screws Bolts, 12.9 Grade Alloy Steel, Fully Threaded, Black Oxide Finish (A) - Image 2](https://m.media-amazon.com/images/I/71CnhmeW1VL.jpg)
![M3 Hex Socket Head Cap Screws Bolts and Nuts and Washers Assortment Kit, 750 Pcs Metric Allen Hex Socket Head Cap Screws Bolts, 12.9 Grade Alloy Steel, Fully Threaded, Black Oxide Finish (A) - Image 3](https://m.media-amazon.com/images/I/71MKWky1KrL.jpg)
![M3 Hex Socket Head Cap Screws Bolts and Nuts and Washers Assortment Kit, 750 Pcs Metric Allen Hex Socket Head Cap Screws Bolts, 12.9 Grade Alloy Steel, Fully Threaded, Black Oxide Finish (A) - Image 4](https://m.media-amazon.com/images/I/71VPF+SfYHL.jpg)
![M3 Hex Socket Head Cap Screws Bolts and Nuts and Washers Assortment Kit, 750 Pcs Metric Allen Hex Socket Head Cap Screws Bolts, 12.9 Grade Alloy Steel, Fully Threaded, Black Oxide Finish (A) - Image 5](https://m.media-amazon.com/images/I/61e0BiQ04rL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by L***M on 30 October 2025*

Perfect for my RC builds. Durable and hard to get stripped. Unlike the Philips screws and Nuts

### ⭐ Review
*by H***E on 22 January 2025*

I have commented on this before to no avail, this product is misleading and labeled as m3 when in fact I received m4 this has caused so many issues please fix this

### ⭐⭐⭐⭐⭐ Review
*by C***D on 21 January 2025*

I'm getting into 3D printing, and M3 screws are kind of the standard used when you need to bolt parts together, so I ordered this, a nice variety of M3 screws, a bunch of M3 bolts and washers. For attaching 3D printed plastic stuff together, these work great. And the price was good too. A good deal. The case they come in seems nice also, it provides easy access to them and convenient storage.

## Frequently Bought Together

- M3 Hex Socket Head Cap Screws Bolts and Nuts and Washers Assortment Kit, 801 Pcs Metric Allen Hex Socket Head Cap Screws Bolts, 12.9 Grade Alloy Steel, Fully Threaded, Black Oxide Finish
- Kadrick Metric Screw Assortment, 660 Pcs M2 Screws, M2*4mm/6mm/8mm/10mm/12mm/16mm,12.9 Grade Alloy Steel, Metric Hex Socket Head Cap Screws Nuts Washers Kit, Black Zinc Plated Anti Rust Upgrade
- VGBUY 500Pcs M4 Screw Kit, Black M4 Screws (7 Sizes 6-30mm), Assorted Metric Nuts and Bolts Assortment Kit, Hex Socket Head Cap M4 x 6/8/12/16/20/25/30mm with Washer Nuts, 12.9 Grade

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-03-21*