---
product_id: 550861804
title: "LLB 300mm Screws M10 Coach Screws Wood Hex Head Width 17mm Pack of 6 Zinc Plated Sleeper Concrete Screw Hexagon Lag Half Thread Bolts Silver Long 12 inch x 0.4 inch (10mm x 300mm)"
brand: "llb"
price: "226.97 DT"
currency: TND
in_stock: true
reviews_count: 8
category: "Llb"
url: https://www.desertcart.tn/products/550861804-llb-300mm-screws-m10-coach-screws-wood-hex-head-width
store_origin: TN
region: Tunisia
---

# 300mm length for deep, secure fastening M10 half-threaded for optimal grip & strength Zinc plated for superior corrosion resistance LLB 300mm Screws M10 Coach Screws Wood Hex Head Width 17mm Pack of 6 Zinc Plated Sleeper Concrete Screw Hexagon Lag Half Thread Bolts Silver Long 12 inch x 0.4 inch (10mm x 300mm)

**Brand:** llb
**Price:** 226.97 DT
**Availability:** ✅ In Stock

## Summary

> 🔩 Secure your build with strength and style — don’t get left behind!

## Quick Answers

- **What is this?** LLB 300mm Screws M10 Coach Screws Wood Hex Head Width 17mm Pack of 6 Zinc Plated Sleeper Concrete Screw Hexagon Lag Half Thread Bolts Silver Long 12 inch x 0.4 inch (10mm x 300mm) by llb
- **How much does it cost?** 226.97 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/550861804-llb-300mm-screws-m10-coach-screws-wood-hex-head-width)

## Best For

- llb enthusiasts

## Why This Product

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

## Key Features

- • **Hex Head Design:** 17mm hex head ensures maximum torque and easy installation with internal hex drive
- • **Durable Zinc Plating:** Corrosion-resistant zinc finish guarantees longevity even in outdoor or sleeper applications
- • **Versatile Application:** Perfect for connecting wooden construction elements, sleepers, and concrete fastening with lag bolt strength
- • **Pack of 6 Premium Screws:** Bulk pack designed for multiple projects, delivering consistent quality and value
- • **Precision Length & Diameter:** 300mm x 10mm size engineered for heavy-duty wood and concrete fastening

## Overview

The LLB 300mm M10 coach screws are half-threaded, zinc-plated lag bolts with a 17mm hex head, designed for heavy-duty wood and concrete fastening. Each pack contains 6 durable screws engineered for superior grip, corrosion resistance, and easy installation, making them ideal for professional-grade wooden construction and sleeper projects.

## Description

LLB 300mm Screws M10 Coach Screws Wood Hex Head Width 17mm Pack of 6 Zinc Plated Sleeper Concrete Screw Hexagon Lag Half Thread Bolts Silver Long 12 inch x 0.4 inch (10mm x 300mm) : desertcart.co.uk: DIY & Tools

Review: Quality product - I bought these to screw down through an old railway sleeper as I was standing. My drive quality was good. Very strong. Great value for money and easy to use
Review: Product as described and value for money - Perfect for what was wanted. Was functional and enabled the chunk of wood to be removed as described. Good quality and value for money.

## Features

- Size – Measuring 4mm x 300mm / 0.4" x 12"
- Quality - Half Thread Bolts
- Quantity - Each pack contains 6 Wood Screws
- Wood Screws Galvanised M10
- Perfect For - Connection of Wooden construction elements

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CDPR1FJC |
| Best Sellers Rank | 52,412 in DIY & Tools ( See Top 100 in DIY & Tools ) 25 in Lag Bolts |
| Brand Name | LLB |
| Colour | Silver |
| Compatible Groove Diameter | 4 Millimeters |
| Country Of Origin | Poland |
| Customer Reviews | 4.4 out of 5 stars 95 Reviews |
| Drive System | Internal Hex |
| Exterior Finish | Zinc |
| Exterior finish | Zinc |
| Fastener Size | 4mm x 300mm |
| Fastener Type | Wood Screws |
| Head Type | Hex |
| Head style | Hex |
| Item Diameter | 4 Millimetres |
| Item Dimensions | 30 x 1 x 1.7 centimetres |
| Item dimensions L x W x H | 30 x 1 x 1.7 centimetres |
| Item height | 17 millimetres |
| Manufacturer | LLB |
| Material | Zinc |
| Material Type | Zinc |
| Metal | Zinc |
| Metal type | Zinc |
| Number of Pieces | 6 |
| Screw Head Style | Hex |
| Set Screw Thread Type | UNC |
| Size | 4mm x 300mm / 0.4" x 12" |
| Thread Coverage | Partially Threaded |
| Thread Size | M10 |
| Thread Style | Right Hand |
| Thread size | M10 |
| Unit Count | 1.0 Count |

## Product Details

- **Exterior finish:** Zinc
- **Head style:** Hex
- **Item dimensions L x W x H:** 30 x 1 x 1.7 centimetres
- **Material:** Zinc
- **Thread size:** M10

## Images

![LLB 300mm Screws M10 Coach Screws Wood Hex Head Width 17mm Pack of 6 Zinc Plated Sleeper Concrete Screw Hexagon Lag Half Thread Bolts Silver Long 12 inch x 0.4 inch (10mm x 300mm) - Image 1](https://m.media-amazon.com/images/I/61koqmKEzeL.jpg)
![LLB 300mm Screws M10 Coach Screws Wood Hex Head Width 17mm Pack of 6 Zinc Plated Sleeper Concrete Screw Hexagon Lag Half Thread Bolts Silver Long 12 inch x 0.4 inch (10mm x 300mm) - Image 2](https://m.media-amazon.com/images/I/71edASMg3xL.jpg)
![LLB 300mm Screws M10 Coach Screws Wood Hex Head Width 17mm Pack of 6 Zinc Plated Sleeper Concrete Screw Hexagon Lag Half Thread Bolts Silver Long 12 inch x 0.4 inch (10mm x 300mm) - Image 3](https://m.media-amazon.com/images/I/81XyLM2cPhL.jpg)
![LLB 300mm Screws M10 Coach Screws Wood Hex Head Width 17mm Pack of 6 Zinc Plated Sleeper Concrete Screw Hexagon Lag Half Thread Bolts Silver Long 12 inch x 0.4 inch (10mm x 300mm) - Image 4](https://m.media-amazon.com/images/I/81cmhnv55cL.jpg)
![LLB 300mm Screws M10 Coach Screws Wood Hex Head Width 17mm Pack of 6 Zinc Plated Sleeper Concrete Screw Hexagon Lag Half Thread Bolts Silver Long 12 inch x 0.4 inch (10mm x 300mm) - Image 5](https://m.media-amazon.com/images/I/81vEacJAfbL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Quality product
*by P***S on 4 January 2026*

I bought these to screw down through an old railway sleeper as I was standing. My drive quality was good. Very strong. Great value for money and easy to use

### ⭐⭐⭐⭐⭐ Product as described and value for money
*by S***N on 19 July 2025*

Perfect for what was wanted. Was functional and enabled the chunk of wood to be removed as described. Good quality and value for money.

### ⭐⭐⭐⭐ Constitution heavy duty screws
*by R***R on 29 March 2025*

They are ok bend under pressure

## Frequently Bought Together

- LLB 300mm Screws M10 Coach Screws Wood Hex Head Width 17mm Pack of 6 Zinc Plated Sleeper Concrete Screw Hexagon Lag Half Thread Bolts Silver Long 12 inch x 0.4 inch (10mm x 300mm)
- M10 Washers, M10 x 25mm Penny Washers, A2 304 Stainless Steel Washers, Flat Repair Washer, Large Metal Washers, Plain Round Chrome Washers for Screws & Bolts(Pack of 20)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-01-27*