---
product_id: 83750969
title: "OZCO Building Products"
brand: "ozco"
price: "₩55029"
currency: KRW
in_stock: true
reviews_count: 13
category: "Ozco"
url: https://www.desertcart.kr/products/83750969-ozco-building-products
store_origin: KR
region: South Korea
---

# Aggressive threads for wood grip 3/8-inch hex head washer design Lifetime corrosion-resistant coating OZCO Building Products

**Brand:** ozco
**Price:** ₩55029
**Availability:** ✅ In Stock

## Summary

> 🛠️ Screw it right, screw it tight — build like a pro with OZCO!

## Quick Answers

- **What is this?** OZCO Building Products by ozco
- **How much does it cost?** ₩55029 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/83750969-ozco-building-products)

## Best For

- ozco enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Special epoxy coating ensures corrosion resistance for the entire lifespan of your project.
- • **Pro-Grade Aesthetic:** Sleek black finish enhances the look of your build, making your project stand out with professional polish.
- • **No Pre-Drill, No Split:** Sharp point and aggressive threads penetrate wood cleanly, saving time and preventing damage.
- • **Effortless Installation:** 3/8-inch hex head with built-in washer design offers superior grip and easy driving with standard tools.
- • **Universal Compatibility:** Works flawlessly with all lumber types, from pressure-treated to cedar, for versatile applications.

## Overview

OZCO OWT Timber Screws are 1/4-inch by 5-3/4-inch heavy-duty steel fasteners designed for wood-to-wood projects. Featuring aggressive threads and a sharp point, they eliminate the need for pre-drilling while preventing wood splitting. Their 3/8-inch hex head washer design ensures easy installation and superior grip. Coated with a durable epoxy finish, these screws provide lifetime corrosion resistance, compatible with all lumber types, and come in a pack of 25 with a sleek black finish favored by professionals and DIY enthusiasts alike.

## Description

OZCO hardware is innovatively designed and manufactured, so anyone who uses our products will be proud of their work and ours. OZCO Ornamental Wood Ties (OWT) Timber Screws are ¼-inch x 5-3/4-inches and are pre-engineered to make building all of your projects faster and easier. These heavy-duty fasteners are perfect for any wood-to-wood project, no matter the size or scale of what you’re working with. Because of the aggressive threads and sharp points on these screws, pre-drilling is not required, and wood splitting will not occur. These metal screws are protected with a specially designed coating that provides corrosion resistance for the life of the project. OWT Timber Screws feature a built-in washer and a hex head of 3/8 inches, the same standard size as every screw and bolt in the OZCO line. Unlike your conventional hardware, brackets, and connectors, our Ornamental Wood Ties line of products does not require additional labor and materials to conceal them. These connectors can be used with all types of lumber, from pressure-treated to cedar, giving your project a timeless look. At OZCO, our passion is to manufacture the highest quality building products, from decorative hardware to fence brackets, for DIY’ers and professionals.

Review: Better than expected. - Purchased the black 1/4" x 2 3/4" Timber screws. The black coating is even more attractive than I expected and they are obviously well made. They will enhance the look of my project. Would definitely buy again.
Review: Pretty and sturdy - Worked out great for my pergola brackets

## Features

- Includes: (25) 1/4-inch by 5-3/4-inch OWT Timber Screws
- OWT Timber Screws have aggressive threads and a sharp point that penetrates wood without pre-drilling
- OWT Timber Screws are protected with a specially designed coating that provides corrosion resistance for the life of the project
- Perfect for any wood-to-wood project and designed to eliminate pre-drilling
- Feature a 3/8-inch hex head washer design.Coach Screws, Steel

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00IKVIDIW |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #74,826 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #527 in Wood Screws |
| Brand | Ozco |
| Certification | As |
| Color | Black |
| Compatible groove diameter | 0.25 Inches |
| Customer Reviews | 4.8 4.8 out of 5 stars (393) |
| Cutting Diameter | 0.25 Inches |
| Date First Available | February 21, 2014 |
| Exterior Finish | Epoxy |
| Fastener Size | 1/4 inch |
| Fastener Type | Screws |
| Finish | Epoxy Coated |
| Global Trade Identification Number | 00848166006548 |
| Head Style | Hex |
| Head Type | Hex |
| Included Components | Coach Screws |
| Is Discontinued By Manufacturer | No |
| Item Diameter | 0.25 Inches |
| Item Package Quantity | 1 |
| Item Weight | 2.4 ounces |
| Item model number | 56628 |
| Manufacturer | Ozco |
| Material | Steel |
| Measurement System | Imperial |
| Metal Type | Alloy Steel |
| Number of Pieces | 25 |
| Part Number | 56628 |
| Point Style | Type A Point |
| Set Name | 25 Pack |
| Set Screw Thread Type | Unified National Coarse (UNC) |
| Shape | Cylindrical With Helical Thread |
| Size | 25 Pack |
| Style | 1/4" x 5-3/4" |
| Thread Coverage | Partially Threaded |
| Thread Size | 1/4" |
| Thread Style | Left Hand |
| Thread Type | Un |
| Tool Tip Description | Pointed |
| UPC | 848166006548 |
| Usage | Coach Screws |

## Product Details

- **Exterior Finish:** Epoxy
- **Head Style:** Hex
- **Item dimensions L x W x H:** 3.9 x 9.8 x 1.8 inches
- **Material:** Steel
- **Thread Size:** 1/4"

## Images

![OZCO Building Products - Image 1](https://m.media-amazon.com/images/I/21EpmfUMHkL.jpg)
![OZCO Building Products - Image 2](https://m.media-amazon.com/images/I/41iN8mUEsjL.jpg)
![OZCO Building Products - Image 3](https://m.media-amazon.com/images/I/41tAJP-H57L.jpg)
![OZCO Building Products - Image 4](https://m.media-amazon.com/images/I/511mQi4WnTL.jpg)
![OZCO Building Products - Image 5](https://m.media-amazon.com/images/I/51GJzsiOXPL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Better than expected.
*by D***N on February 16, 2024*

Purchased the black 1/4" x 2 3/4" Timber screws. The black coating is even more attractive than I expected and they are obviously well made. They will enhance the look of my project. Would definitely buy again.

### ⭐⭐⭐⭐⭐ Pretty and sturdy
*by H***E on October 5, 2025*

Worked out great for my pergola brackets

### ⭐⭐⭐⭐⭐ Good
*by A***X on December 29, 2025*

Love Isco cheaper solution to overpriced products and this worked well

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-02-05*