---
product_id: 413801034
title: "100pcs M3 x 12mm 12.9 Grade Alloy Steel Hex Socket Head Cap Screws Bolts,Black Oxide Finish"
brand: "zw99 store"
price: "€ 36.19"
currency: EUR
in_stock: true
category: "Zw99"
url: https://www.desertcart.gr/products/413801034-100pcs-m3-x-12mm-12-9-grade-alloy-steel-hex
store_origin: GR
region: Greece
---

# M3 x 12mm full thread - precision fit Black Oxide Finish - corrosion resistant Grade 12.9 Alloy Steel - ultra durable 100pcs M3 x 12mm 12.9 Grade Alloy Steel Hex Socket Head Cap Screws Bolts,Black Oxide Finish

**Brand:** zw99 store
**Price:** € 36.19
**Availability:** ✅ In Stock

## Summary

> 🔩 Elevate your build with bolts that mean business.

## Quick Answers

- **What is this?** 100pcs M3 x 12mm 12.9 Grade Alloy Steel Hex Socket Head Cap Screws Bolts,Black Oxide Finish by zw99 store
- **How much does it cost?** € 36.19 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/413801034-100pcs-m3-x-12mm-12-9-grade-alloy-steel-hex)

## Best For

- zw99 store enthusiasts

## Why This Product

- Trusted zw99 store brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Hex Socket Drive:** Internal hex drive system offers superior torque control and reduces cam-out risk.
- • **Sleek & Stealthy:** Black oxide finish not only protects against rust but adds a professional matte look.
- • **Unmatched Strength:** Crafted from premium 12.9 grade alloy steel for industrial-grade durability.
- • **Bulk Pack Advantage:** 100-piece set keeps your projects fully stocked and ready to tackle any challenge.
- • **Precision Engineering:** Metric M3 x 12mm full-thread design ensures a flawless, secure fit every time.

## Overview

This pack of 100 M3 x 12mm hex socket head cap screws features a robust 12.9 grade alloy steel construction with a full thread and corrosion-resistant black oxide finish, designed for precision fastening and long-lasting performance in professional and DIY projects.

## Description

Material: 12.9 Alloy Steel

## Features

- Material: 12.9 Alloy Steel
- Metric M3 screws,Thread Length: M3 x 12mm，Thread Diameter: 3mm,
- Thread Pitch: 0.5mm, Total Length: 15mm
- Head Diameter: 5.3mm，Head Height : 3mm
- Thread Coverage: Full Thread

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07CNFTK99 |
| Best Sellers Rank | 1,026,805 in DIY & Tools ( See Top 100 in DIY & Tools ) 3,531 in Hex Bolts |
| Brand Name | zw99 Store |
| Colour | Black |
| Customer Reviews | 4.8 4.8 out of 5 stars (644) |
| Drive System | Internal Hex |
| Exterior Finish | Black Oxide Finish,Steel |
| Fastener Size | M3 x 12mm |
| Fastener Type | Socket Screws |
| Grade Rating | 12.9 |
| Head Type | Socket |
| Item Dimensions | 6 x 3 x 3 millimetres |
| Item Hardness | 12.9 grade |
| Manufacturer | GuanGuangshundagshunda |
| Manufacturer Grade | Grade 12 9 |
| Manufacturer Part Number | 12.9-M3 |
| Material Type | Alloy Steel |
| Metal | Alloy Steel |
| Model Number | Metric M3 Hex Socket Head Cap Screws |
| Number Of Items | 100 |
| Number of Pieces | 100 |
| Screw Head Style | Hex |
| Size | M3 x 12mm |
| Thread Coverage | Fully Threaded |
| Thread Size | M3 |
| Thread Style | Right Hand |
| UPC | 647731947671 |

## Product Details

- **Exterior finish:** Black Oxide Finish,Steel
- **Head style:** Hex
- **Manufacturer grade:** Grade 12 9
- **Material:** Alloy Steel
- **Thread size:** M3

## Images

![100pcs M3 x 12mm 12.9 Grade Alloy Steel Hex Socket Head Cap Screws Bolts,Black Oxide Finish - Image 1](https://m.media-amazon.com/images/I/51APivb1AeL.jpg)
![100pcs M3 x 12mm 12.9 Grade Alloy Steel Hex Socket Head Cap Screws Bolts,Black Oxide Finish - Image 2](https://m.media-amazon.com/images/I/41-3Zmkt33L.jpg)
![100pcs M3 x 12mm 12.9 Grade Alloy Steel Hex Socket Head Cap Screws Bolts,Black Oxide Finish - Image 3](https://m.media-amazon.com/images/I/21MK0DJFzML.jpg)
![100pcs M3 x 12mm 12.9 Grade Alloy Steel Hex Socket Head Cap Screws Bolts,Black Oxide Finish - Image 4](https://m.media-amazon.com/images/I/41ZWGbeEh4L.jpg)
![100pcs M3 x 12mm 12.9 Grade Alloy Steel Hex Socket Head Cap Screws Bolts,Black Oxide Finish - Image 5](https://m.media-amazon.com/images/I/41vsTT-+OQL.jpg)

## Available Options

This product comes in different **Size, Item Package Quantity** options.

## Frequently Bought Together

- 100pcs M3 x 12mm 12.9 Grade Alloy Steel Hex Socket Head Cap Screws Bolts,Black Oxide Finish
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**Shop now:** [https://www.desertcart.gr/products/413801034-100pcs-m3-x-12mm-12-9-grade-alloy-steel-hex](https://www.desertcart.gr/products/413801034-100pcs-m3-x-12mm-12-9-grade-alloy-steel-hex)

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-09-29*