---
product_id: 176355637
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: "$748"
currency: MXN
in_stock: true
reviews_count: 13
category: "Rustark"
url: https://www.desertcart.mx/products/176355637-450pcs-m3-m4-m5-m6-m8-allen-head-socket-hex
store_origin: MX
region: Mexico
---

# organized transparent storage 450 pcs versatile sizes 12.9 class alloy steel strength 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:** $748
**Availability:** ✅ In Stock

## Summary

> 🔧 Screw it right, every time — the ultimate hex grub kit for pros and DIYers alike!

## 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?** $748 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.mx](https://www.desertcart.mx/products/176355637-450pcs-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

- • **Trusted Support:** Reliable after-sales service with 12-hour response to keep your projects moving
- • **Ready-to-Use Kit:** 450 screws neatly sorted in a durable transparent box for instant access
- • **Premium Alloy Steel:** 12.9 class black alloy steel ensures unmatched durability and corrosion resistance
- • **Complete Metric Range:** 15 precise sizes from M3 to M8 cover every project need
- • **Versatile Applications:** Perfect for repairs on bikes, furniture, plumbing, and more—never get stuck again

## Overview

The Rustark 450Pcs Allen Head Socket Hex Grub Screw Set offers a comprehensive assortment of 15 metric sizes (M3 to M8) made from high-strength 12.9 class black alloy steel. Packaged in a durable transparent box, this kit delivers corrosion resistance, full threading, and exceptional hardness, making it ideal for professional and home repairs across multiple applications.

## Description

Rustark 450Pcs M3/M4/M5/M6/M8 Allen Head Socket Hex Grub Screw Set Assortment Kit [Specifications]: 1.Color: Black 2.Material: 12.9 Class Alloy Steel 3.Screw Sizes: M3 M4 M5 M6 M8 4.Quantity: 450pcs, come with durable transparent plastic box 5.Head Type: Hex Socket Screw [Why Choose Us]: Reliable After Sales Service & Worry-Free Purchase 12.9 Class Alloy Steel & Excellent Corrosion Resistance Perfect Packaging & Durable Transparent Plastic Box [Package Include]: M3x3 ...........................................40Pcs M3x4............................................40Pcs M3x10..........................................40Pcs M4x4............................................40Pcs M4x6............................................40Pcs M4x10..........................................40Pcs M5x5............................................30Pcs M5x8............................................30Pcs M5x12..........................................30Pcs M6x6.......................................20Pcs M6x8.......................................20Pcs M6x10....................................20Pcs M8x8.......................................20Pcs M8x12.....................................20Pcs M8x16.....................................20Pcs 450Pcs in total, package in durable transparent box

Review: Great set to have for stripped screws! - This is a great kit to have in your tool box, I’m always working on bikes with stripped bolts and these are great replacements without having to order specific screws for each bike.
Review: Great assortment kit of metric set screws - Great assortment of some hard to find sizes. Saves many trips to the hardware store. Get a set of metric sizes and SAE sizes and you set.

## 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 | #134,410 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #247 in Set Screws #363 in Screw & Bolt Assortment Sets |
| Brand | Rustark |
| Color | Black |
| Compatible groove diameter | 8 Millimeters |
| Date First Available | April 9, 2019 |
| Exterior Finish | Stainless Steel |
| Fastener Size | M3 x 10 |
| Fastener Type | Socket Screws |
| Head Style | Socket |
| Head Type | Socket |
| Item Diameter | 8 Millimeters |
| Item Weight | 1 pounds |
| Item model number | R-jimi screw |
| Manufacturer | Rustark |
| Material | Plastic |
| Maximum Shear Strength | 200 N/mm² |
| Metal Type | Alloy Steel |
| Number of Pieces | 450 |
| 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 | M3, M4, M5, M6, M8 |
| Thread Class | 12.9 |
| Thread Coverage | Fully Threaded |
| Thread Style | Fully Threaded Metric |
| Thread Type | Metric |
| UPC | 079986235331 799862353316 |

## Product Details

- **Exterior Finish:** Stainless Steel
- **Head Style:** Socket
- **Item dimensions L x W x H:** 7.68 x 5.12 x 1.38 inches
- **Material:** Plastic
- **Point Style:** head

## 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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great set to have for stripped screws!
*by J***O on May 28, 2025*

This is a great kit to have in your tool box, I’m always working on bikes with stripped bolts and these are great replacements without having to order specific screws for each bike.

### ⭐⭐⭐⭐⭐ Great assortment kit of metric set screws
*by J***. on July 2, 2025*

Great assortment of some hard to find sizes. Saves many trips to the hardware store. Get a set of metric sizes and SAE sizes and you set.

### ⭐⭐⭐⭐⭐ Quality parts
*by J***N on December 26, 2025*

Good quality parts and had exactly what I needed and was shipped fast. Thanks!

## 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 Mexico*
*Store origin: MX*
*Last updated: 2026-02-21*