---
product_id: 52401570
title: "1/4\" x 3\" Exterior Washer Head Structural Wood Lag Screws Powerlags Torx T-Star (50 EA) Bit Included Heavy Duty Rust Resistant"
brand: "spax"
price: "VT12827"
currency: VUV
in_stock: true
reviews_count: 8
category: "Spax"
url: https://www.desertcart.vu/products/52401570-1-4-x-3-exterior-washer-head-structural-wood-lag
store_origin: VU
region: Vanuatu
---

# Grade 5 Heat-Treated Strength High Corrosion Resistant Coating Patented Fast-Drive Threads 1/4" x 3" Exterior Washer Head Structural Wood Lag Screws Powerlags Torx T-Star (50 EA) Bit Included Heavy Duty Rust Resistant

**Brand:** spax
**Price:** VT12827
**Availability:** ✅ In Stock

## Summary

> 🔩 Upgrade your build with the ultimate PowerLag precision and durability!

## Quick Answers

- **What is this?** 1/4" x 3" Exterior Washer Head Structural Wood Lag Screws Powerlags Torx T-Star (50 EA) Bit Included Heavy Duty Rust Resistant by spax
- **How much does it cost?** VT12827 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/52401570-1-4-x-3-exterior-washer-head-structural-wood-lag)

## Best For

- spax enthusiasts

## Why This Product

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

## Key Features

- • **Unmatched Durability:** Heat-treated Grade 5 carbon steel ensures maximum strength and minimal breakage.
- • **Weatherproof Performance:** High Corrosion Resistant (HCR) coating perfect for treated lumber and outdoor use.
- • **Patented Thread Technology:** Drive screws faster with less wood splitting—hassle-free fastening every time.
- • **Sleek Built-In Washer Head:** Contemporary low-profile design for a clean, professional finish without extra washers.
- • **Speedy Installation with T-Star Drive:** Superior bit engagement reduces effort and accelerates your project timeline.

## Overview

The SPAX 1/4" x 3" Exterior Washer Head Structural Wood Lag Screws combine German engineering with American manufacturing excellence. Featuring heat-treated Grade 5 carbon steel, patented fast-drive threads, and a high corrosion resistant coating, these screws deliver superior clamping strength and weatherproof durability. Designed for professional-grade wood construction, they speed up installation with a T-Star drive and built-in washer head, making them the go-to choice for millennial managers who demand efficiency and lasting quality.

## Description

Discover the Spax Advantage! this German engineered/American made Spax 1/4 x 3in. T-star Drive washer head HCR PowerLag offers a premium quality fastening solution to help ensure professional results in less time than inferior imported screws. Say good Bye to your fathers traditional lag. Spax PowerLags offer superior installation performance and durability over traditional lag screws and carriage bolts for structural wood construction. Made of carbon steel and coated for long term durability to ensure your project endures. Do it Once, do it right with Spax.

Review: Great Product - I used several hundred of these screws on a small cattle barn and corral I built. They have plenty of holding power. Only one broke and I’m pretty sure that was my fault. Be sure to use with a good impact driver!!
Review: Best Structural Screw - Great structural screw for use in treated lumber and composite lumber. I used in building a large deck with composite lumber, has great pullout resistance and corrosion resistance and the washer head holds pieces together tight.

## Features

- The trend setting low profile built-on washer head design offers a contemporary and sleek finished installation. Excellent draw down strength without the need for a separate washer delivers superior clamping ability and a easier installation
- Check out our Threads!! our patented thread technology allows the screw to be driven faster, is easier to install, and reduces splitting in wood. Let Spax take some of the hassle out of your next project
- High Corrosive resistant (HCR) coating makes these screws ideal for use in treated lumber and exterior applications
- Heat treated Grade 5 Durability. Subjecting the screw to heat treating gives greater strength and reduces breakage
- T-Star plus head provides superior bit engagement. Better bit engagement means quicker installation with less effort

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B018JQFBT6 |
| Best Sellers Rank | #15,314 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #28 in Lag Screws |
| Brand | SPAX |
| Color | Black |
| Customer Reviews | 4.8 out of 5 stars 603 Reviews |
| Drive System | Torx |
| Exterior Finish | Anti-Corrosion Topcoat |
| Fastener Size | 1/4 inch x 3 inches |
| Fastener Type | Wood Screws |
| Finish Types | High Corrosion Resistant |
| Global Trade Identification Number | 00712216019171 |
| Grade Rating | grade_ 5 |
| Head Style | Washer Head |
| Head Type | Round |
| Item Diameter | 0.25 Inches |
| Item Dimensions | 3 x 0.25 x 0.25 inches |
| Item Weight | 1.71 Pounds |
| Item dimensions L x W x H | 3 x 0.25 x 0.25 inches |
| Manufacturer | Altenloh, Brink & Co |
| Material | Carbon Steel |
| Material Type | Carbon Steel |
| Maximum Shear Strength | greater than 38 ksi |
| Metal Type | High Carbon Steel |
| Model | 4581820700765 |
| Number of Pieces | 50 |
| Part Number | 4581820700765 |
| Point Style | Type 17 Point |
| Screw Head Style | Washer Head |
| Screw Point Style | Type 17 Point |
| Size Name | 1/4 x 3" |
| Thread Coverage | Partially Threaded |
| Thread Size | 1/4" |
| Thread Style | Left Hand |
| Thread Type | Un |
| UPC | 712216019171 |
| Unit Count | 50.0 Count |

## Product Details

- **Exterior Finish:** Anti-Corrosion Topcoat
- **Head Style:** Washer Head
- **Item dimensions L x W x H:** 3 x 0.25 x 0.25 inches
- **Material:** Carbon Steel
- **Thread Size:** 1/4"

## Images

![1/4" x 3" Exterior Washer Head Structural Wood Lag Screws Powerlags Torx T-Star (50 EA) Bit Included Heavy Duty Rust Resistant - Image 1](https://m.media-amazon.com/images/I/413nepDO-ZL.jpg)

## Available Options

This product comes in different **Size, Number Of Items** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great Product
*by T***N on January 6, 2026*

I used several hundred of these screws on a small cattle barn and corral I built. They have plenty of holding power. Only one broke and I’m pretty sure that was my fault. Be sure to use with a good impact driver!!

### ⭐⭐⭐⭐⭐ Best Structural Screw
*by J***N on November 7, 2025*

Great structural screw for use in treated lumber and composite lumber. I used in building a large deck with composite lumber, has great pullout resistance and corrosion resistance and the washer head holds pieces together tight.

### ⭐⭐⭐⭐⭐ Perfect! Great product!
*by R***C on January 7, 2026*

Love these ! Wish I could get them local!!

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-05-04*