---
product_id: 38504595
title: "FastenMaster FMTLOK04-12 TimberLOK Heavy-Duty Wood Screw, 4 Inches, 12-Count,Black"
brand: "fastenmaster"
price: "€ 53.20"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.hr/products/38504595-fastenmaster-fmtlok04-12-timberlok-heavy-duty-wood-screw-4-inches
store_origin: HR
region: Croatia
---

# No predrilling needed, fast install 4-inch heavy-duty length Lifetime corrosion resistance FastenMaster FMTLOK04-12 TimberLOK Heavy-Duty Wood Screw, 4 Inches, 12-Count,Black

**Brand:** fastenmaster
**Price:** € 53.20
**Availability:** ✅ In Stock

## Summary

> 🛠️ Screw it right, screw it tight — the TimberLOK way!

## Quick Answers

- **What is this?** FastenMaster FMTLOK04-12 TimberLOK Heavy-Duty Wood Screw, 4 Inches, 12-Count,Black by fastenmaster
- **How much does it cost?** € 53.20 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/38504595-fastenmaster-fmtlok04-12-timberlok-heavy-duty-wood-screw-4-inches)

## Best For

- fastenmaster enthusiasts

## Why This Product

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

## Key Features

- • **Speed Meets Strength:** Sharp point and aggressive threads penetrate dense wood without predrilling, saving you time and labor.
- • **Code-Ready Confidence:** Head-stamped and nationally code compliant (IBC/IRC ESR #1078) for hassle-free inspections.
- • **All-In-One Convenience:** Includes a free 5/6 inch driver bit—everything you need to get started right out of the box.
- • **Effortless Power Drive:** Unique tapered head countersinks smoothly for a flush, professional finish every time.
- • **Built to Last a Lifetime:** Guaranteed corrosion resistance ensures your projects stay strong and rust-free for decades.

## Overview

The FastenMaster FMTLOK04-12 TimberLOK is a 4-inch heavy-duty wood screw designed for superior strength and ease of use. Featuring a unique tapered head for easy countersinking, aggressive threads that eliminate the need for predrilling, and guaranteed lifetime corrosion resistance, it’s perfect for deck framing, fencing, and all wood-to-wood projects. Nationally code compliant and head-stamped for quick inspection, this 12-count pack includes a free driver bit for immediate use.

## Description

Product Description               FastenMaster FMTLOK04-12 TimberLOK Heavy-Duty Wood Screw, 4 Inches, 12-Count                  From the Manufacturer               Save time, money, and labor costs. TimberLOK's sharp point and aggressive threads penetrate the densest woods without predrilling and provide stronger shear values than 3/8 inch galvanized lag screws. TimberLOK's unique countersinking head design is perfect for your next wood-to-wood project, whether it be deck framing, fencing, or any post to beam connections. It’s also perfect for replacing galvanized spikes in raised flower beds, landscaping, or retaining walls. No need to predrill and sledge a spike. TimberLOK just zips right in. Each pack size contains a free 5/6 inch driver bit. TimberLOK fasteners are American made.

## Features

- Manufactured in china
- Easy to use
- Highly durable
- Nationally code compliant IBC/IRC ESR #1078
- Head-stamped for easy code inspection
- Unique tapered head countersinks easily into wood
- ACQ approved
- Nationally code compliant IBC/IRC ESR #1078
- Head-stamped for easy code inspection
- Unique tapered head countersinks easily into wood
- Guaranteed corrosion resistance for the life of the project
- ACQ approved

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Wood |
| Head Style | Hex |
| Item dimensions L x W x H | 1.5 x 3.8 x 6 inches |
| Exterior Finish | Plain |
| Thread Size | 4" |
| Point Style | Tapered |
| Metal Type | Alloy Steel |
| Brand | FASTENMASTER |
| Color | Black |
| Head Type | Taper-drive |
| Thread Type | Wood-specific Thread |
| Thread Coverage | Fully Threaded |
| Fastener Type | Wood Screws |
| Thread Style | Left Hand |
| Thread Class | Self-tapping |
| Fastener Size | 4 inches |
| Size | 4 Inch |
| Compatible groove diameter | 4 Inches |
| Number of Pieces | 12 |
| UPC | 608309414940 608309414841 |
| Global Trade Identification Number | 00608309414841 |
| Manufacturer | FastenMaster |
| Part Number | FMTLOK04-12 |
| Item Weight | 8.8 ounces |
| Product Dimensions | 1.5 x 3.8 x 6 inches |
| Item model number | FMTLOK04-12 |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Measurement System | Imperial |
| Usage | Wood |
| Batteries Required? | No |
| Warranty Description | LedgerLOK is fully guaranteed for the life of the project against rusting or corrosion. Fasteners are not intended for use within 1,000 feet of saltwater applications. |

## Product Details

- **Material:** Wood
- **Head Style:** Hex
- **Item dimensions L x W x H:** 1.5 x 3.8 x 6 inches
- **Exterior Finish:** Plain
- **Thread Size:** 4"

## Images

![FastenMaster FMTLOK04-12 TimberLOK Heavy-Duty Wood Screw, 4 Inches, 12-Count,Black - Image 1](https://m.media-amazon.com/images/I/41l5a8VmfdL.jpg)
![FastenMaster FMTLOK04-12 TimberLOK Heavy-Duty Wood Screw, 4 Inches, 12-Count,Black - Image 2](https://m.media-amazon.com/images/I/61uJOzJbK1L.jpg)
![FastenMaster FMTLOK04-12 TimberLOK Heavy-Duty Wood Screw, 4 Inches, 12-Count,Black - Image 3](https://m.media-amazon.com/images/I/616-wfFgZ9L.jpg)
![FastenMaster FMTLOK04-12 TimberLOK Heavy-Duty Wood Screw, 4 Inches, 12-Count,Black - Image 4](https://m.media-amazon.com/images/I/81Z2cqrh+AL.jpg)
![FastenMaster FMTLOK04-12 TimberLOK Heavy-Duty Wood Screw, 4 Inches, 12-Count,Black - Image 5](https://m.media-amazon.com/images/I/616-wfFgZ9L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    With these screws, there's no challenge I can't conquer!!
  

*by D***T on Reviewed in the United States on January 27, 2018*

After watching a couple youtube videos, I took a 42' seamless aluminum gutter off the back of my house by myself.  I built a few wooden brackets to hold it in place while I pulled out all the gutter spikes, and then carefully lifted it off the brackets at one end at a time until I had it on the ground, undamaged.That has nothing to do with these screws.  I just wanted to brag about it.Then, I put the whole thing back up, again by myself, and used these screws instead of the old spikes I took out.  They worked great.

### ⭐⭐⭐ 







  
  
    I guess 11 good out of 12 isn't that bad
  

*by J***R on Reviewed in the United States on May 4, 2020*

But at the price per unit, I expect these all to be straight. Mine package came with 11 good ones and one completely bent one. I tried to straighten in vice and 10 other ways but no dice, this thing must have been forged this way. These are supposed to be top quality, so that was a disappointment. My plans called for an exact number of screws and I had to improvise and compromise for the last one.

### ⭐⭐⭐⭐⭐ 







  
  
    Great - Account for driver size when recessed
  

*by D***S on Reviewed in the United States on July 6, 2020*

These are great.  I used these short ones for hinges mostly, but for the longer ones on the roof, some I needed to recess the head.  That was not fun until I realized the trick - use a square bottom bit (auger or forstner on hardwood) then countersink. A large enough countersink to drive the head recessed means you can't match the head since there is a flat bit above the angle.  That compression maybe not important for soft-wood rough construction, but if you are attaching hardwood for appearance it becomes an issue).

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-04*