---
product_id: 313914572
title: "450Pcs M3/M4/M5/M6/M8 Allen Head Socket Hex Grub Screw Set Assortment Kit with Internal Hex Drive - 12.9 Class Black Alloy Steel"
brand: "rustark"
price: "£19.65"
currency: GBP
in_stock: true
url: https://www.desertcart.co.uk/products/313914572-450pcs-m3-m4-m5-m6-m8-allen-head-socket-hex
store_origin: GB
region: United Kingdom
---

# durable transparent organizer box 450pcs versatile sizes 12.9 class black alloy steel 450Pcs M3/M4/M5/M6/M8 Allen Head Socket Hex Grub Screw Set Assortment Kit with Internal Hex Drive - 12.9 Class Black Alloy Steel

**Brand:** rustark
**Price:** £19.65
**Availability:** ✅ In Stock

## Summary

> 🔧 Unlock every project’s potential with the ultimate hex grub screw arsenal!

## Quick Answers

- **What is this?** 450Pcs M3/M4/M5/M6/M8 Allen Head Socket Hex Grub Screw Set Assortment Kit with Internal Hex Drive - 12.9 Class Black Alloy Steel by rustark
- **How much does it cost?** £19.65 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/313914572-450pcs-m3-m4-m5-m6-m8-allen-head-socket-hex)

## Best For

- rustark enthusiasts

## Why This Product

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

## Key Features

- • **Reliable Support:** Responsive after-sales service with guaranteed satisfaction within 12 hours
- • **Versatile Application:** Ideal for professional repairs, home improvement, and precision mechanical work
- • **Complete Size Spectrum:** 15 distinct M3 to M8 sizes to fit every project need
- • **Premium Alloy Strength:** 12.9 class black alloy steel ensures unmatched durability and corrosion resistance
- • **Organized for Efficiency:** Compact transparent box with segmented compartments for quick size identification

## Overview

This 450-piece hex grub screw set features 15 sizes ranging from M3 to M8, crafted from high-strength 12.9 class black alloy steel for superior durability and corrosion resistance. Packaged in a sturdy transparent organizer box, it offers quick access and easy sorting, making it perfect for professional and DIY use across various repair and assembly tasks.

## Description

450Pcs M3/M4/M5/M6/M8 Allen Head Socket Hex Grub Screw Set Assortment Kit with Internal Hex Drive - 12.9 Class Black Alloy Steel

## Features

- ✔SCREW SIZES --- M3 x 3, M3 x 4, M3 x 10, M4 x 4, M4 x 6, M4 x 10, M5 x 5, M5 x 8, M5 x 12, M6 x 6, M6 x 8, M6 x 10, M8 x 8, M8 x 12, M8 x 16, 15sizes in total, you can choose the suitable to meet your different needs.
- ✔PACKAGE INCLUDING --- You will get 450pcs 15 sizes headless cup points, package in durable transparent plastic box with many small squares, it is very convenience for you to distinguish each size.
- ✔HIGH QUALITY --- Made of 12.9 class black alloy steel internal hex drive cup-point with strong corrosion resistance property, durable and sturdy, has strong hardness and does not fall off easily, you can use it for along time.
- ✔WIDE APPLICATIONS --- Widely used in garages, shops or faucets, door handles around the home, lamps, knobs, plumbers and other minor repairs.
- ✔WORRY-FREE PURCHASE --- We will provide you with reliable after-sales service. If you have any questions with our product, please feel free to contact us, I will reply you within 12 hours and we will solve them for you soon. Please set your heart at rest to purchase.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07QFVRS77 |
| Best Sellers Rank | #132,701 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #257 in Set Screws #368 in Screw & Bolt Assortment Sets |
| Brand | Rustark |
| Color | Black |
| Compatible Groove Diameter | 8 Millimeters |
| Customer Reviews | 4.6 4.6 out of 5 stars (756) |
| Drive System | Internal Hex |
| Exterior Finish | Stainless Steel |
| Fastener Size | M3 x 10 |
| Fastener Type | Socket Screws |
| Finish Types | Black |
| Grade Rating | class_ 12.9 |
| Head Type | Socket |
| Item Diameter | 8 Millimeters |
| Item Dimensions | 7.68 x 5.12 x 1.38 inches |
| Item Weight | 1 Pounds |
| Manufacturer | Rustark |
| Material Type | Plastic |
| Maximum Shear Strength | 200 N/mm² |
| Metal Type | Alloy Steel |
| Model | R-jimi screw |
| Number of Pieces | 450 |
| Part Number | R-jimi screw |
| Screw Head Style | Socket |
| Screw Point Style | head |
| Set Name | Rustark 450Pcs M3/M4/M5/M6/M8 Allen Head Socket Hex Grub Screw Set Assortment Kit |
| Set Screw Thread Type | Metric |
| Size Name | M3, M4, M5, M6, M8 |
| Thread Class | 12.9 |
| Thread Coverage | Fully Threaded |
| Thread Style | Fully Threaded Metric |
| Thread Type | Metric |
| UPC | 079986235331 799862353316 |
| Unit Count | 1.0 Count |

## Product Details

- **Material:** Alloy Steel
- **Head style:** Socket
- **Item dimensions L x W x H:** 19.5 x 13 x 3.5 centimeters
- **Exterior finish:** Alloy Steel
- **Thread size:** M3

## Images

![450Pcs M3/M4/M5/M6/M8 Allen Head Socket Hex Grub Screw Set Assortment Kit with Internal Hex Drive - 12.9 Class Black Alloy Steel - Image 1](https://m.media-amazon.com/images/I/71G6ekH1apL.jpg)

## Questions & Answers

**Q: Any idea pitch sizes? Metric come in 1.0, 1.25 etc.**
A: The ones I purchased were standard coarse pitches

**Q: What’s the pitch of these set screws ?**
A: Standard coarse pitches

## Frequently Bought Together

- Rustark 450Pcs M3/M4/M5/M6/M8 Allen Head Socket Hex Grub Screw Set Assortment Kit with Internal Hex Drive - 12.9 Class Black Alloy Steel
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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-06-08*