---
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: "€ 25.99"
currency: EUR
in_stock: true
url: https://www.desertcart.ie/products/413801034-100pcs-m3-x-12mm-12-9-grade-alloy-steel-hex
store_origin: IE
region: Ireland
---

# M3 x 12mm - precision metric sizing 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:** € 25.99
**Availability:** ✅ In Stock

## Summary

> 🛠️ Elevate your build game with screws 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?** € 25.99 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/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

- • **Bulk Ready:** 100-piece pack designed for professionals who demand efficiency and reliability in every project.
- • **Hex Socket Head:** Easy to install with hex key for secure fastening and quick adjustments.
- • **Sleek & Protective:** Black oxide finish not only looks sharp but also guards against rust and wear.
- • **Unmatched Strength:** Crafted from premium 12.9 grade alloy steel for maximum durability under pressure.
- • **Precision Engineering:** Metric M3 x 12mm sizing with full thread coverage ensures perfect fit and grip every time.

## Overview

This pack of 100 M3 x 12mm hex socket head cap screws is made from high-strength 12.9 grade alloy steel, featuring a full thread and corrosion-resistant black oxide finish. Ideal for precision fastening in professional and DIY projects, these screws combine durability, sleek design, and metric accuracy for reliable performance.

## 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 |
|---------------|-------|
| Manufacturer | GuanGuangshundagshunda |
| Part number | 12.9-M3 |
| Item Weight | 91 g |
| Product Dimensions | 0.53 x 0.53 x 0.8 cm; 91 g |
| Item model number | Metric M3 Hex Socket Head Cap Screws |
| Size | M3 x 12mm |
| Colour | Black |
| Material | Alloy Steel |
| Installation method | Screw-In |
| Item Package Quantity | 100 |
| Number of Pieces | 100 |
| Head Style | Hex |
| Measurement System | Metric |
| Batteries included? | No |
| Batteries Required? | No |

## Product Details

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

## 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/51w3TmVJJ4L.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/71V6Gr5wvNL.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/61h9ltH0UnL.jpg)

## Available Options

This product comes in different **Size Name, 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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- iexcell 50 Pcs M3 x 35mm Thread Pitch 0.5 mm Alloy Steel 12.9 Grade Hex Socket Head Cap Screws Bolts Kit, Black Oxide Finish

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**Shop now:** [https://www.desertcart.ie/products/413801034-100pcs-m3-x-12mm-12-9-grade-alloy-steel-hex](https://www.desertcart.ie/products/413801034-100pcs-m3-x-12mm-12-9-grade-alloy-steel-hex)

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-20*