---
product_id: 631343067
title: "520 Pcs M4 Bolts and Nuts Set, Round and Hex Head Screws, Hex Socket Button Head Bolts and Nuts Kit"
brand: "woshilaods"
price: "2974 kr"
currency: ISK
in_stock: false
url: https://www.desertcart.is/products/631343067-520-pcs-m4-bolts-and-nuts-set-round-and-hex
store_origin: IS
region: Iceland
---

# M4 size precision fit 520 pcs versatile kit 10.9 grade carbon steel strength 520 Pcs M4 Bolts and Nuts Set, Round and Hex Head Screws, Hex Socket Button Head Bolts and Nuts Kit

**Brand:** woshilaods
**Price:** 2974 kr
**Availability:** ❌ Out of Stock

## Summary

> 🔧 Elevate your DIY game with pro-level precision and power!

## Quick Answers

- **What is this?** 520 Pcs M4 Bolts and Nuts Set, Round and Hex Head Screws, Hex Socket Button Head Bolts and Nuts Kit by woshilaods
- **How much does it cost?** 2974 kr with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/631343067-520-pcs-m4-bolts-and-nuts-set-round-and-hex)

## Best For

- woshilaods enthusiasts

## Why This Product

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

## Key Features

- • **Organized & Ready:** All components neatly stored in a reusable box for quick access and clutter-free workspace.
- • **Complete Versatility:** 520-piece assortment covering 10 different bolt lengths plus nuts and wrench for every project.
- • **Effortless Precision:** Round head hex socket design ensures balanced force and smooth tightening in tight spaces.
- • **Unmatched Durability:** Crafted from premium 10.9 grade carbon steel for superior hardness and corrosion resistance.
- • **Pro-Grade Performance:** Uniform, tight threads prevent slipping and deformation, delivering reliable fastening every time.

## Overview

This 520-piece M4 bolts and nuts set features high-strength 10.9 grade carbon steel construction, offering exceptional durability and corrosion resistance. The kit includes a variety of bolt lengths with round head hex socket designs for balanced force distribution and easy tightening, plus a wrench for slip-free installation. Perfectly suited for professional repairs, assembly, and DIY projects across industrial, automotive, and home settings, all organized in a reusable storage box for ultimate convenience.

## Description

What are the advantages of our hexagon head bolts and nuts? ① Hexagon socket head bolts are made of high-quality 10.9 grade carbon steel, which is high in hardness, corrosion-resistant, strong and durable. ② M4 Screw and nut kits adopt a round head and hexagonal socket design, and the head contact area is large, making the force more balanced. ③ Hexagon bolts and nuts have tight threads and are not easy to deform and slide during use, can be easily installed and disassembled using the provided wrench. ④ All hex socket head bolt sets are placed according to size in a clear reusable storage box for quick access and storage. ⑤ Suitable for various large-scale industrial and small-scale repairs, such as assembly, repair, and DIY work in offices, factories, homes, and workshops. Features: Material: 10.9 Grade Carbon Steel Size: M4 Color: Black Quantity: 520 Pcs Package includes: 45 Pcs - M4x6mm 40 Pcs - M4x8mm 35 Pcs - M4x10mm 30 Pcs - M4x12mm 20 Pcs - M4x16mm 20 Pcs - M4x20mm 15 Pcs - M4x25mm 15 Pcs - M4x30mm 20 Pcs - M4x35mm 20 Pcs - M4x40mm 260 Pcs - M4 Nuts 1 - M4 Wrench After-sales guarantee: If you have any questions, please contact us in time and we will solve your questions as soon as possible. Warm Tips: Color may vary slightly from the online image due to your monitor's color settings. Please refer to the actual product. Thank you for your understanding.

## Features

- 10.9 Grade Carbon Steel Material: M4 bolts and nuts are made of high quality 10.9 grade carbon steel material, which is high in hardness, strong, thick, corrosion-resistant, scratch-resistant, not easy to rust or break, and has long-lasting durability and stability.
- Round Head Hexagon Socket Bolts Assortment Set: M4 nuts and bolts adopt a round head hex socket design, and the head contact area is large, making it more balanced in force. The design makes tightening the m4 bolt set in tight areas effortless.
- Practical Design: The threads of the hexagon socket bolts are uniform and smooth, with clear lines, balanced use, and good tightening effect. Equipped with an installation wrench. When tightening m4 screws, the wrench is not easy to slip out and the tightening effect is better.
- Multi-scene Application: Suitable for assembly, repair, and DIY work in offices, factories, homes, and workshops. Widely used in the mechanical field, communication equipment, electromechanical equipment, ship equipment, household appliances, engineering machinery, automobiles, motorcycles and other parts fixing.
- Package Includes: You will receive 520 pieces in total, sizes and quantities include: 45 pcs m4x6mm, 40 pcs m4x8mm, 35 pcs m4x10mm, 30 pcs m4x12mm, 20 pcs m4x16mm, 20 pcs m4x20mm, 15 pcs m4x25mm, 15 pcs m4x30mm, 20 pcs m4x35mm, 20 pcs m4x40mm, 260 pcs m4 nuts, 1 x m4 wrench, meeting the needs of multiple scenarios and fields.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Fastener type | Hexagon Socket Head Bolts and Nuts |
| Head style | Button, Hex, Round, Socket Cap |
| Finish type | Plain |
| Shape | Round |
| Thread size | M4 |
| Number of pieces | 520 |
| Number of items | 520 |
| Manufacturer | WSLLD |
| Part number | 840054 |
| Item Weight | 650 g |
| Product Dimensions | 17 x 9 x 2.3 cm; 650 g |
| Item model number | M4 |
| Finish | Plain |
| Item Package Quantity | 1 |
| Head Style | Button, Hex, Round, Socket Cap |
| Measurement System | Metric |
| Batteries included? | No |
| Batteries Required? | No |

## Product Details

- **Size:** M4
- **Colour:** Black 520 M4
- **Material:** Carbon Steel
- **Brand:** woshilaoDS
- **Item dimensions L x W x H:** 17 x 9 x 2.3 centimetres

## Images

![520 Pcs M4 Bolts and Nuts Set, Round and Hex Head Screws, Hex Socket Button Head Bolts and Nuts Kit - Image 1](https://m.media-amazon.com/images/I/81JMfSn-hFL.jpg)
![520 Pcs M4 Bolts and Nuts Set, Round and Hex Head Screws, Hex Socket Button Head Bolts and Nuts Kit - Image 2](https://m.media-amazon.com/images/I/613P1vtpAfL.jpg)
![520 Pcs M4 Bolts and Nuts Set, Round and Hex Head Screws, Hex Socket Button Head Bolts and Nuts Kit - Image 3](https://m.media-amazon.com/images/I/61+dYhHswcL.jpg)
![520 Pcs M4 Bolts and Nuts Set, Round and Hex Head Screws, Hex Socket Button Head Bolts and Nuts Kit - Image 4](https://m.media-amazon.com/images/I/61kPYMXRqQL.jpg)
![520 Pcs M4 Bolts and Nuts Set, Round and Hex Head Screws, Hex Socket Button Head Bolts and Nuts Kit - Image 5](https://m.media-amazon.com/images/I/61JAy0J4lNL.jpg)

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-03-05*