---
product_id: 146136666
title: "iexcell 250 Pcs M3 x 6/8/10/12/16 Alloy Steel 12.9 Grade SCM435 High Tensile Hex Socket Button Head Cap Screws Bolts Assortment Kit"
brand: "iexcell"
price: "¥4865"
currency: JPY
in_stock: true
reviews_count: 13
category: "Iexcell"
url: https://www.desertcart.jp/products/146136666-iexcell-250-pcs-m3-x-6-8-10-12-16
store_origin: JP
region: Japan
---

# 250 pcs premium alloy screws Grade 12.9 high tensile strength Organized in sturdy storage case iexcell 250 Pcs M3 x 6/8/10/12/16 Alloy Steel 12.9 Grade SCM435 High Tensile Hex Socket Button Head Cap Screws Bolts Assortment Kit

**Brand:** iexcell
**Price:** ¥4865
**Availability:** ✅ In Stock

## Summary

> 🔧 Screw it right, screw it tight — the pro’s choice for flawless fixes!

## Quick Answers

- **What is this?** iexcell 250 Pcs M3 x 6/8/10/12/16 Alloy Steel 12.9 Grade SCM435 High Tensile Hex Socket Button Head Cap Screws Bolts Assortment Kit by iexcell
- **How much does it cost?** ¥4865 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/146136666-iexcell-250-pcs-m3-x-6-8-10-12-16)

## Best For

- iexcell enthusiasts

## Why This Product

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

## Key Features

- • **Complete Size Range:** Five M3 sizes (6-16mm) covering all your fastening needs
- • **Smart Storage Solution:** Compact, easy-use plastic case keeps your kit organized and ready
- • **Effortless Installation:** Internal hex socket design with included chrome-vanadium hex key
- • **Corrosion Resistant Finish:** Black oxide coating plus anti-rust oil for long-lasting reliability
- • **Precision Engineered Alloy Steel:** SCM435 alloy with HRC 39-44 hardness for unmatched durability

## Overview

The iexcell 250 Pcs M3 Hex Socket Button Head Cap Screws Assortment Kit offers a versatile, high-strength fastening solution with premium SCM435 alloy steel screws rated at Grade 12.9 tensile strength. Featuring five essential sizes from 6mm to 16mm, each screw is finished with a corrosion-resistant black oxide coating. The kit includes a durable chrome-vanadium hex key and a sturdy storage case, making it perfect for professionals and DIY enthusiasts seeking precision, reliability, and convenience in one comprehensive package.

## Description

✔ Material of Screws: Alloy Steel SCM435, high tensile, hardness: HRC 39-44 ✔ Material of Hex Key: chrome-vanadium steel, nickel plated ✔ Screw head style: button ✔ Screw drive style: internal hex, known as hex socket, hex Size 2.0 mm ✔ Rust proof: black oxide finish covered with anti-rust oil ✔ Easy to store: these screws and hex key come in a sturdy easy-use case [ Sizes ]----- [ Thread Length ]----[ Total Length ] M3 x 6-------6mm/0.24"--------7.6mm/0.30" M3 x 8-------8mm/0.31"--------9.6mm/0.38" M3 x 10-----10mm/0.39"-------11.6mm/0.46" M3 x 12-----12mm/0.47"-------13.6mm/0.54" M3 x 16-----16mm/0.63--------17.6mm/0.69" [ Package Contains ] M3 x6--------50 Pcs M3 x8--------50 Pcs M3 x10-------50 Pcs M3 x12-------50 Pcs M3 x16-------50 Pcs Hex Key ------1 Pcs About Internal Hex drives Internal Hex drives, also known as Hex Socket Drives, have a hexagonal hole in the center that requires an Allen key, also known as a hex key or Allen wrench About Button Head Button head is similar to standard pan head screws but have a curved top

Review: Perfect fit! - These screws worked perfectly and were priced just right! Thanks for offering a quality product!!
Review: Worth the money for sure - I used these in a few 3D prints and they worked great. Size was spot on, quality was great for what I was using it for, they installed with little to no effort, and are excellent quality for the price.

## Features

- ✔ Includes 250 Pcs, 5 Sizes, M3 Hex Socket Button Head Cap Screws: M3 x 6, M3 x 8, M3 x 10, M3 x 12, M3 x 16
- ✔ Screw Head Style: Button ; Screw Drive Style: Internal Hex Drives, Known as Hex Socket Drives, Hex Size 2 mm;Head Diameter: 5.5 mm, Head Height: 1.6 mm; Thread Size: 3 mm, Thread Pitch: 0.5 mm
- ✔ Material of Screws: Alloy Steel 40Cr, Black Oxide Finish; Strength Grade of Screws : 12.9 Grade, Hardness: HRC 39-44, Tensile Strength: 1220N/mm²
- ✔ Includes 1 Pcs Hex Key Wrench, Hex Size: 2.0 mm, to Drive These Screws Conveniently and Easily; Material of Hex Key: Chrome-Vanadium Steel, Nickel Plated, Higher Strength And Anti-rust
- ✔ Package: These Screws and 1 Pcs Hex Key Wrench Packed In a Sturdy Easy-use Plastic Storage Case, Organized Conveniently and Easily

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07Q45TMDG |
| Best Sellers Rank | #2,675 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #10 in Socket Head Screws |
| Brand | iexcell |
| Date First Available | March 28, 2019 |
| Exterior Finish | Black Oxide |
| Fastener Type | Hex Socket Button Head Cap Screw |
| Head Style | Button |
| Head Type | Button |
| Item Diameter | 5.55 Millimeters |
| Item Hardness | Grade 12.9 |
| Item Weight | 7 ounces |
| Item model number | BM306165531-12.9 |
| Manufacturer | iExcell |
| Manufacturer Grade | premium |
| Material | Alloy Steel |
| Metal Type | Alloy Steel |
| Number of Pieces | 50 |
| Set Name | M3 x 6 (50pcs), M3 x 8 (50pcs), M3 x 10 (50pcs), M3 x 12 (50pcs), M3 x 16 (50pcs) |
| Size | M3 x 6/8/10/12/16 |
| Thread Class | 3B |
| Thread Size | m3-0.5 |
| Thread Style | Right Hand |
| Thread Type | Metric |
| UPC | 601629960630 |

## Product Details

- **Exterior Finish:** Black Oxide
- **Head Style:** Button
- **Manufacturer Grade:** premium
- **Material:** Alloy Steel
- **Thread Size:** m3-0.5

## Images

![iexcell 250 Pcs M3 x 6/8/10/12/16 Alloy Steel 12.9 Grade SCM435 High Tensile Hex Socket Button Head Cap Screws Bolts Assortment Kit - Image 1](https://m.media-amazon.com/images/I/31HvuokhlUL.jpg)
![iexcell 250 Pcs M3 x 6/8/10/12/16 Alloy Steel 12.9 Grade SCM435 High Tensile Hex Socket Button Head Cap Screws Bolts Assortment Kit - Image 2](https://m.media-amazon.com/images/I/41cA+x0NIlL.jpg)
![iexcell 250 Pcs M3 x 6/8/10/12/16 Alloy Steel 12.9 Grade SCM435 High Tensile Hex Socket Button Head Cap Screws Bolts Assortment Kit - Image 3](https://m.media-amazon.com/images/I/41kAkAzj2AL.jpg)
![iexcell 250 Pcs M3 x 6/8/10/12/16 Alloy Steel 12.9 Grade SCM435 High Tensile Hex Socket Button Head Cap Screws Bolts Assortment Kit - Image 4](https://m.media-amazon.com/images/I/71ARqPcsq4L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect fit!
*by S***N on October 10, 2025*

These screws worked perfectly and were priced just right! Thanks for offering a quality product!!

### ⭐⭐⭐⭐⭐ Worth the money for sure
*by R***K on June 15, 2025*

I used these in a few 3D prints and they worked great. Size was spot on, quality was great for what I was using it for, they installed with little to no effort, and are excellent quality for the price.

### ⭐⭐⭐⭐⭐ Good Product
*by M***S on January 9, 2026*

Pretty straight forward! great quality

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-16*