---
product_id: 48415015
title: "8, M8 x 75 Genuine Thunderbolt Masonry Concrete Anchor Screw with Hexagonal Head (V35156)"
brand: "thunderbolt"
price: "$U2015"
currency: UYU
in_stock: true
reviews_count: 9
category: "Thunderbolt"
url: https://www.desertcart.uy/products/48415015-8-m8-x-75-genuine-thunderbolt-masonry-concrete-anchor-screw
store_origin: UY
region: Uruguay
---

# M8 x 75 mm precision size Patented concave thread for low torque install Stress-free non-expansion fixing 8, M8 x 75 Genuine Thunderbolt Masonry Concrete Anchor Screw with Hexagonal Head (V35156)

**Brand:** thunderbolt
**Price:** $U2015
**Availability:** ✅ In Stock

## Summary

> 🔧 Secure your space with zero stress—anchor like a pro, every time!

## Quick Answers

- **What is this?** 8, M8 x 75 Genuine Thunderbolt Masonry Concrete Anchor Screw with Hexagonal Head (V35156) by thunderbolt
- **How much does it cost?** $U2015 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/48415015-8-m8-x-75-genuine-thunderbolt-masonry-concrete-anchor-screw)

## Best For

- thunderbolt enthusiasts

## Why This Product

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

## Key Features

- • **Thread-Long Grip:** Fixes along the entire thread length, enabling reliable fastening through hollow sections and thick materials.
- • **No Marking, No Fuss:** Drill, clean, and screw straight through your fixture—no marking out required for a flawless install.
- • **Edge-Friendly & Removable:** Fix close to edges without expansion stress; easily adjustable or removable for perfect alignment.
- • **Effortless Precision Fixing:** Patented concave thread design ensures rapid, low-torque installation with exceptional pull-out resistance.
- • **Versatile Material Compatibility:** Securely anchors into concrete, brick, wood, marble, block, and stone—no plastic plugs needed.

## Overview

The M8 x 75 Genuine Thunderbolt Masonry Concrete Anchor Screw features a patented concave thread for low-torque, high-strength fixing without expansion stress. Designed for versatile use across concrete, brick, wood, and stone, it enables quick, precise, and removable installations close to edges or through hollow sections—eliminating the need for plastic plugs or complex marking.

## Description

Simply drill a hole using the correct masonry drill bit, remove the dust and debris and wind in. No need for plastic plugs. These bolts are classed as non-expansion anchors which means they won't stress the concrete when fixing. Hexagonal Head Genuine Thunderbolt The unique patented concave thread design taps its own thread and provides a rapid, low torque installation with exceptional pull out resistance. It also allows the user to adjust or remove the bolt ensuring a secure and accurate installation. This stress free, non-expansion through fixing is the new solution for medium duty anchoring into concrete, brick, stone, wood and concrete block replacing the need for traditional anchors such as through bolts, shield, sleeve and drop-in anchors Always 'over drill' the hole by 20mm The M8 Bolt requires a hole clearance through the fixture of 10mm

Review: Perfect for many projects - Brilliant product
Review: Did the Job - I was having difficulty getting a good solid fix to very hard bricks with rawl bolts but these worked great. Hole must be made with the exact drill size indicated.

## Features

- Gives a Mechanical interlock between construction material and the fixing, with no expansion stress
- Fixes close to the edge and is totally removable
- Fixes along the entire thread length to enable fixing through hollow sections
- No marking out required, fixes straight through your fixture
- Works in concrete, brick, wood, marble, block, stone and more

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01720TNQC |
| Assembled Diameter | 8 Millimetres |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 39,342 in DIY & Tools ( See Top 100 in DIY & Tools ) 408 in Screws (DIY & Tools) |
| Customer Reviews | 4.5 4.5 out of 5 stars (759) |
| Cutting Diameter | 8 Millimetres |
| Date First Available | 11 Mar. 2021 |
| Finish | plastic |
| Head Style | Hex |
| Item Package Quantity | 1 |
| Item Weight | 454 g |
| Manufacturer | GENUINE THUNDERBOLT® |
| Material | Plastic |
| Measurement System | Metric |
| Number of Pieces | 1 |
| Shape | Cylindrical with hexagonal head |
| Size | M8 x 75 |

## Product Details

- **Exterior finish:** Plastic
- **Head style:** Hex
- **Manufacturer grade:** Class 10.9
- **Material:** Plastic
- **Thread size:** M8

## Images

![8, M8 x 75 Genuine Thunderbolt Masonry Concrete Anchor Screw with Hexagonal Head (V35156) - Image 1](https://m.media-amazon.com/images/I/71XPlgU7xLL.jpg)

## Questions & Answers

**Q: What size drill bit do I need to fit these bolts please?**
A: You need a 8mm masonary drill. These thunderbolts are interference fit. You drill 8mm hole. Hammer them in slightly at the start and use a spanner to screw them in the rest of the way until fully tightened. The raised parts of the thunderbolts cut into the concrete as you screw them in . Hope this helps.

**Q: Are these 8mm width**
A: Yes, use an 8mm drill and they'll cut their own thread as you tighten them. They're excellent bolts that I used to anchor a large steel framed garage and I can safely say it ain't going anywhere!

**Q: could I sandwich a piece of rope with two bricks bolted together?**
A: Probably. But you would need to be careful when drilling and tightening. The bolts are stronger that fragile bricks

**Q: Could i use these to fix a cast iron bracket for a hanging basket to my house?**
A: I believe so but the brackets you fix to the wall would need to have holes of the right size to accommodate the screws, may be a washer if to large. They do provide excellent anchorage in brick work. Hole sizes crucial.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect for many projects
*by B***S on 25 June 2025*

Brilliant product

### ⭐⭐⭐⭐⭐ Did the Job
*by M***S on 25 December 2024*

I was having difficulty getting a good solid fix to very hard bricks with rawl bolts but these worked great. Hole must be made with the exact drill size indicated.

### ⭐⭐⭐⭐ Good quality
*by M***N on 19 August 2021*

Good quality good grip fast delivery

## Frequently Bought Together

- 8, M8 x 75 Genuine Thunderbolt Masonry Concrete Anchor Screw with Hexagonal Head (V35156)
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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-02-17*