---
product_id: 691962309
title: "AF4F M6 x 50mm Concrete Self Tapping Masonry Bolt Anchor Screw (10 Pack) 10mm Hexagonal Head fix to Masonry, Brick, Marble, Stone etc"
brand: "alwaysfirst 4 fixings"
price: "€ 14.00"
currency: EUR
in_stock: true
reviews_count: 8
category: "Alwaysfirst 4 Fixings"
url: https://www.desertcart.it/products/691962309-af4f-m6-x-50mm-concrete-self-tapping-masonry-bolt-anchor
store_origin: IT
region: Italy
---

# AF4F M6 x 50mm Concrete Self Tapping Masonry Bolt Anchor Screw (10 Pack) 10mm Hexagonal Head fix to Masonry, Brick, Marble, Stone etc

**Brand:** alwaysfirst 4 fixings
**Price:** € 14.00
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** AF4F M6 x 50mm Concrete Self Tapping Masonry Bolt Anchor Screw (10 Pack) 10mm Hexagonal Head fix to Masonry, Brick, Marble, Stone etc by alwaysfirst 4 fixings
- **How much does it cost?** € 14.00 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/691962309-af4f-m6-x-50mm-concrete-self-tapping-masonry-bolt-anchor)

## Best For

- alwaysfirst 4 fixings enthusiasts

## Why This Product

- Trusted alwaysfirst 4 fixings brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

AF4F M6 x 50mm Concrete Self Tapping Masonry Bolt Anchor Screw (10 Pack) 10mm Hexagonal Head fix to Masonry, Brick, Marble, Stone etc : desertcart.co.uk: DIY & Tools

Review: Solid bolts - Used for wooden fence post. Easy to use. Does a great job
Review: Perfect… tired and tested - I used these to fit a heavy steel barricade against an external door (inside) into the cavity wall. I did use anchor resin also, they did not budge when a burglar failed to kick the door open. UPVC doors are rubbish, all 4 bolts forced open with a screwdriver!

## Features

- High Tensile Strength: Crafted for maximum load-bearing capabilities, these bolts ensure that even the heaviest items are securely fastened.
- Anti-Slip Thread Design: Prevents loosening over time, maintaining the integrity of your installation and offering continuous support.
- Customisable Fit: Available in a variety of lengths and diameters, allowing for tailored solutions that meet specific project needs efficiently.
- Weatherproof Coating: The zinc plating acts as a barrier against moisture and chemicals, extending the lifespan of the bolts in outdoor and industrial environments.
- User-Friendly: Designed for compatibility with standard installation tools, these bolts make the installation process straightforward, even for DIY enthusiasts.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DQ985CBN |
| Best Sellers Rank | 3,217 in DIY & Tools ( See Top 100 in DIY & Tools ) 16 in Anchors |
| Brand Name | ALWAYSFIRST 4 FIXINGS |
| Colour | Yellow Passivated |
| Compatible Groove Diameter | 6 Millimeters |
| Country Of Origin | China |
| Customer Reviews | 4.4 4.4 out of 5 stars (111) |
| Drive System | External Hex |
| Exterior Finish | Zinc |
| Fastener Size | M6 x 50mm |
| Fastener Type | Self Tapping Masonry Anchor |
| Finish Types | Zinc Passivated |
| Head Type | Flat Hex |
| Item Diameter | 6 Millimetres |
| Item Hardness | Grade 10.9 |
| Manufacturer | ALWAYSFIRST 4 FIXINGS |
| Manufacturer Grade | Premium |
| Manufacturer Part Number | CMB10 |
| Material Type | Carbon Steel |
| Metal | Alloy Steel |
| Number Of Items | 10 |
| Screw Head Style | Hex |
| Set Screw Thread Type | Unified National Coarse (UNC) |
| Size | M6 x 50mm |
| Thread Class | 3A |
| Thread Coverage | Upto 100mm |
| Thread Style | Right Hand |
| Thread Type | Right Hand |
| Unit Count | 10.0 count |

## Product Details

- **Colour:** Yellow Passivated
- **Exterior finish:** Zinc
- **Head style:** Hex
- **Manufacturer grade:** Premium
- **Material:** Carbon Steel

## Images

![AF4F M6 x 50mm Concrete Self Tapping Masonry Bolt Anchor Screw (10 Pack) 10mm Hexagonal Head fix to Masonry, Brick, Marble, Stone etc - Image 1](https://m.media-amazon.com/images/I/51UDj67WP4L.jpg)
![AF4F M6 x 50mm Concrete Self Tapping Masonry Bolt Anchor Screw (10 Pack) 10mm Hexagonal Head fix to Masonry, Brick, Marble, Stone etc - Image 2](https://m.media-amazon.com/images/I/41F3-JW8-BL.jpg)
![AF4F M6 x 50mm Concrete Self Tapping Masonry Bolt Anchor Screw (10 Pack) 10mm Hexagonal Head fix to Masonry, Brick, Marble, Stone etc - Image 3](https://m.media-amazon.com/images/I/71tfqyGGbmL.jpg)
![AF4F M6 x 50mm Concrete Self Tapping Masonry Bolt Anchor Screw (10 Pack) 10mm Hexagonal Head fix to Masonry, Brick, Marble, Stone etc - Image 4](https://m.media-amazon.com/images/I/71t0M38-IXL.jpg)
![AF4F M6 x 50mm Concrete Self Tapping Masonry Bolt Anchor Screw (10 Pack) 10mm Hexagonal Head fix to Masonry, Brick, Marble, Stone etc - Image 5](https://m.media-amazon.com/images/I/31LXi+dYsKL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Solid bolts
*by B***L on 28 February 2026*

Used for wooden fence post. Easy to use. Does a great job

### ⭐⭐⭐⭐⭐ Perfect… tired and tested
*by A***Y on 30 November 2025*

I used these to fit a heavy steel barricade against an external door (inside) into the cavity wall. I did use anchor resin also, they did not budge when a burglar failed to kick the door open. UPVC doors are rubbish, all 4 bolts forced open with a screwdriver!

### ⭐⭐⭐⭐ Not bad
*by S***R on 5 October 2025*

They are good but not really self tapping, it says drill a hole 8mm did that and they would still not screw into the concrete post had to make the holes bigger.

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**Shop now:** [https://www.desertcart.it/products/691962309-af4f-m6-x-50mm-concrete-self-tapping-masonry-bolt-anchor](https://www.desertcart.it/products/691962309-af4f-m6-x-50mm-concrete-self-tapping-masonry-bolt-anchor)

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-05-11*