---
product_id: 424974422
title: "M12 Hex Bolt, 12.9 Grade High Tensile Alloy Steel, Outer Hexagonal Screws for Machinery Industry Fastener, (Partial Threaded) M12×90mm,3 pcs"
brand: "ansiedio"
price: "¥4567"
currency: JPY
in_stock: true
reviews_count: 8
category: "Ansiedio"
url: https://www.desertcart.jp/products/424974422-m12-hex-bolt-12-9-grade-high-tensile-alloy-steel
store_origin: JP
region: Japan
---

# Grade 12.9 high tensile strength Partial threading for optimal grip M12×90mm size, perfect for heavy-duty use M12 Hex Bolt, 12.9 Grade High Tensile Alloy Steel, Outer Hexagonal Screws for Machinery Industry Fastener, (Partial Threaded) M12×90mm,3 pcs

**Brand:** ansiedio
**Price:** ¥4567
**Availability:** ✅ In Stock

## Summary

> 🔩 Lock in strength, unlock your project’s potential!

## Quick Answers

- **What is this?** M12 Hex Bolt, 12.9 Grade High Tensile Alloy Steel, Outer Hexagonal Screws for Machinery Industry Fastener, (Partial Threaded) M12×90mm,3 pcs by ansiedio
- **How much does it cost?** ¥4567 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/424974422-m12-hex-bolt-12-9-grade-high-tensile-alloy-steel)

## Best For

- ansiedio enthusiasts

## Why This Product

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

## Key Features

- • **Precision Fit:** Partial threading engineered for maximum stress distribution and tighter fastening in machinery and construction.
- • **Sleek Black Finish:** Brushed black exterior not only resists corrosion but adds a professional, high-tech aesthetic to your projects.
- • **Unmatched Strength:** Crafted from 12.9 grade alloy steel delivering up to 1000MPa tensile strength for industrial-grade durability.
- • **Trusted Performance:** Highly rated by professionals for reliability in demanding environments, ensuring your build stands the test of time.
- • **Versatile Application:** Ideal for heavy machinery, automotive repairs, woodworking, and furniture assembly—your all-in-one fastening solution.

## Overview

The M12 Hex Bolt set features three 12.9 grade high tensile alloy steel bolts, each 90mm long with partial threading. Designed for heavy-duty industrial, automotive, and woodworking applications, these black hex bolts combine superior strength, precision engineering, and corrosion resistance to deliver reliable, professional-grade fastening solutions.

## Description

Product Description 12.9 Grade High Tensile Hex Bolts Black Mechanical bolt M5-M12 The hex bolt is made of 12.9 grade high-strength carbon steel material, which has the characteristics of high toughness, good cold and hot processing performance, and excellent machinability. The minimun tensile strength of carbon alloy steel is up to 1000Mpa Widely used in the construction industry, communication equipments, ship assembly and other machinery industry. Suitable for heavy industrial and mechanical steel frame structure connection. Specification Materials: 12.9 Grade Alloy steel Features: High Tensile Head Type: Outer Hex Head Specifications: M5, M6, M8, M10, M12 Suitable for high-intensity applications Notice M5 is fully threaded M6, M8 length ≥55mm is partail threaded M10 length ≥ 60mm is partail threaded M12 length ≥65mm is partail threaded

Review: M12 Bolt - If anyone looking for tread pitch on M12 bolt is 1.75 bolt itself is great 10/10 but not good for what i intended
Review: Used on BMW to replace rear toe arms bolts - On E90 toe arm bolt snapped, have to drill out original 10.9 bolt out and as thread was damaged I have to set bolt and nut setup. So decided for this 12.9 bolt and A2 nut, so far it holds well.

## Features

- Outer Hexagonal Screws
- Material: 12.9 grade high tensile alloy steel, black
- Easy to Install: Having enough stress-bearing surface that can be screwed tighter.
- Fixing component,industrial and construction fasteners.Ideal for use in areas where you need Hexagon Head Bolt Screws.
- Suitable for machinery and industrial fasteners.Also fit for many woodworking and DIY jobs, fasteners for the furniture and cabinet industry.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08TW5VR1M |
| Best Sellers Rank | 36,270 in DIY & Tools ( See Top 100 in DIY & Tools ) 163 in Hex Bolts |
| Brand Name | ANSIEDIO |
| Colour | black |
| Country Of Origin | China |
| Customer Reviews | 4.5 out of 5 stars 63 Reviews |
| Drive System | External Hex |
| Exterior Finish | Black |
| Exterior finish | Black |
| Fastener Size | M12×90mm |
| Fastener Type | Hexagon Bolt |
| Finish Types | Brushed |
| Grade Rating | 12.9 |
| Head Type | Hex |
| Head style | Hex |
| Item Diameter | 12 Millimetres |
| Item Hardness | Grade 12.9 |
| Manufacturer | ANSIEDIO |
| Manufacturer Grade | grade 12.9 |
| Manufacturer grade | grade 12.9 |
| Material | Alloy Steel |
| Material Type | Alloy Steel |
| Number of Pieces | 3 |
| Screw Head Style | Hex |
| Size | (Partial Threaded) M12×90mm,3 pcs |
| Thread Class | 2A |
| Thread Coverage | Partially Threaded |
| Thread Size | M12 |
| Thread Style | Right Hand |
| Thread Type | partial threaded |
| Thread size | M12 |
| Unit Count | 3.0 Count |

## Product Details

- **Material:** Alloy Steel
- **Thread size:** M12
- **Exterior finish:** Black
- **Manufacturer grade:** grade 12.9
- **Head style:** Hex

## Images

![M12 Hex Bolt, 12.9 Grade High Tensile Alloy Steel, Outer Hexagonal Screws for Machinery Industry Fastener, (Partial Threaded) M12×90mm,3 pcs - Image 1](https://m.media-amazon.com/images/I/516Thna0MxL.jpg)
![M12 Hex Bolt, 12.9 Grade High Tensile Alloy Steel, Outer Hexagonal Screws for Machinery Industry Fastener, (Partial Threaded) M12×90mm,3 pcs - Image 2](https://m.media-amazon.com/images/I/71u0m9zLsxL.jpg)
![M12 Hex Bolt, 12.9 Grade High Tensile Alloy Steel, Outer Hexagonal Screws for Machinery Industry Fastener, (Partial Threaded) M12×90mm,3 pcs - Image 3](https://m.media-amazon.com/images/I/512WZakRL-L.jpg)
![M12 Hex Bolt, 12.9 Grade High Tensile Alloy Steel, Outer Hexagonal Screws for Machinery Industry Fastener, (Partial Threaded) M12×90mm,3 pcs - Image 4](https://m.media-amazon.com/images/I/51jinpbrCdL.jpg)
![M12 Hex Bolt, 12.9 Grade High Tensile Alloy Steel, Outer Hexagonal Screws for Machinery Industry Fastener, (Partial Threaded) M12×90mm,3 pcs - Image 5](https://m.media-amazon.com/images/I/51oxP2DE8oL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ M12 Bolt
*by T***S on 13 January 2025*

If anyone looking for tread pitch on M12 bolt is 1.75 bolt itself is great 10/10 but not good for what i intended

### ⭐⭐⭐⭐⭐ Used on BMW to replace rear toe arms bolts
*by R***. on 28 April 2024*

On E90 toe arm bolt snapped, have to drill out original 10.9 bolt out and as thread was damaged I have to set bolt and nut setup. So decided for this 12.9 bolt and A2 nut, so far it holds well.

### ⭐⭐⭐⭐⭐ Bolt
*by C***T on 6 November 2024*

As ordered. Does the job well

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---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-27*