---
product_id: 16123660
title: "Dorman 370-225 Trailer Floor Screws-Torx-1/4-20 in. x 2-1/2 in., 50 Pack"
brand: "dorman"
price: "€ 42.62"
currency: EUR
in_stock: true
reviews_count: 13
category: "Dorman"
url: https://www.desertcart.hr/products/16123660-dorman-370-225-trailer-floor-screws-torx-1-4-20
store_origin: HR
region: Croatia
---

# T30 Torx star drive for no slip 1/4-20 size precision fit Black oxide corrosion resistance Dorman 370-225 Trailer Floor Screws-Torx-1/4-20 in. x 2-1/2 in., 50 Pack

**Brand:** dorman
**Price:** € 42.62
**Availability:** ✅ In Stock

## Summary

> 🔧 Screw it right, screw it tight — the pro’s choice for trailer deck dominance!

## Quick Answers

- **What is this?** Dorman 370-225 Trailer Floor Screws-Torx-1/4-20 in. x 2-1/2 in., 50 Pack by dorman
- **How much does it cost?** € 42.62 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/16123660-dorman-370-225-trailer-floor-screws-torx-1-4-20)

## Best For

- dorman enthusiasts

## Why This Product

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

## Key Features

- • **Precision Power Fit:** Engineered 1/4-20 x 2.5 inch screws for a flawless, secure hold every time.
- • **Star-Drive Advantage:** T30 Torx head ensures zero cam-out and effortless installation with the right bit.
- • **Expert Support Backing:** Dorman’s ASE Blue Seal Certified team has your back for any technical questions.
- • **Bulk Ready for Big Jobs:** 50 screws per pack means you’re always stocked for any trailer upgrade or repair.
- • **Corrosion-Resistant Armor:** Black oxide coating guards against rust, extending trailer deck longevity.

## Overview

Dorman 370-225 Trailer Floor Screws are high-strength, 1/4-20 x 2.5 inch Torx star head fasteners designed for trailer deck installation and repairs. Made from durable alloy steel with a black oxide finish, they resist corrosion and prevent stripped threads. Each pack contains 50 screws, optimized for quick, hassle-free mounting with a T30 star bit and a 7/32 pilot hole. Backed by expert ASE-certified support, these screws deliver reliable performance for professional-grade trailer maintenance.

## Description

Installing or replacing the deck on your utility trailer or car hauler, or mounting a tool box, winch or other accessory? These 1/4-20 x 2 1/2 inch star head screws are the high-strength trailer floor fasteners you need for a fast, hassle-free installation with no stripped threads. Just pre-drill a 7/32 pilot hole and secure the screw with a T30 star bit. The screws are black oxide-coated for corrosion resistance and manufactured from quality steel for durability. They are conveniently packaged 50 per box.

Review: Great for trailer repair - Each time we have to replace our pressure treated decking on our trailers, we use these self tapping heavy duty screws. They don’t back out, there is minimal corrosion, and they hold fast. I suggest using a 1/2” corded drill, you will need the power and torque, we’ve found cordless drills or ratchets smaller than 1/2” do not perform as well.
Review: Perfect for fastening trailer deck - Pre drilled with 7/32nd and drove these right through 1/8 in mild steel. Everything worked perfectly. I had zero failure, every single bolt threaded snug. The job took less than half of the time I expected because these work so well.

## Features

- Ideal fastener - these 1/4-20 x 2 1/2 inch star head trailer deck screws are the high-strength fasteners you need for a hassle-free job with no stripped threads
- Easy installation - just pre-drill a 7/32 pilot hole and secure the screw with a T30 star bit
- Durable construction - black oxide-coated for corrosion resistance and manufactured from quality steel for durability
- Convenient quantity - packed 50 screws per box
- Support available - every Dorman part is backed by Dorman's ASE Blue Seal Certified technical support team

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0033YHRHE |
| Best Sellers Rank | #111,505 in Automotive ( See Top 100 in Automotive ) #282 in RV Jacks & Stabilizers |
| Brand | Dorman |
| Color | black |
| Compatible Groove Diameter | 0.25 Inches |
| Customer Reviews | 4.5 4.5 out of 5 stars (436) |
| Drive System | Torx |
| Exterior Finish | Black Oxide |
| Fastener Size | 1/4"-20 |
| Fastener Type | Deck Screws |
| Finish Types | Black Oxide |
| Global Trade Identification Number | 00019495370406 |
| Head Type | Truss |
| Included Components | 50 Trailer Floor Screws |
| Item Diameter | 0.25 Inches |
| Item Dimensions | 4.81 x 3.63 x 2.19 inches |
| Item Part Number | 370-225 |
| Item Type Name | Trailer Floor Screws - Torx 1/4-20 In. x 2-1/2 In. - Black |
| Item Weight | 1.4 Pounds |
| Manufacturer | Dorman Products |
| Material Type | Alloy Steel |
| Metal Type | Steel |
| Model | 370-225 |
| Number of Pieces | 50 |
| Part Number | 370-225 |
| Screw Head Style | Flat, Hex, Oval, Pan, Round, Truss |
| Screw Point Style | Truss |
| Set Name | 50-Piece Set |
| Set Screw Thread Type | Torx |
| Size Name | 2.5 inches |
| Thread Coverage | Fully Threaded |
| Thread Size | 1/4"-20 |
| Thread Type | Unc |
| UPC | 019495370406 |
| Unit Count | 50.0 Count |
| Warranty Description | Limited Lifetime |

## Product Details

- **Exterior Finish:** Black Oxide
- **Head Style:** Flat, Hex, Oval, Pan, Round, Truss
- **Item dimensions L x W x H:** 4.81 x 3.63 x 2.19 inches
- **Material:** Alloy Steel
- **Thread Size:** 1/4"-20

## Images

![Dorman 370-225 Trailer Floor Screws-Torx-1/4-20 in. x 2-1/2 in., 50 Pack - Image 1](https://m.media-amazon.com/images/I/61N3oncp2sL.jpg)
![Dorman 370-225 Trailer Floor Screws-Torx-1/4-20 in. x 2-1/2 in., 50 Pack - Image 2](https://m.media-amazon.com/images/I/618jNHe7QnL.jpg)

## Questions & Answers

**Q: What is the length? What size drill bit?**
A: BlackDrive Style:	Torx™Fastener Length (In):	2.5 In.Fastener Plating:	NoneFQA Compliant Fastener:	YesMaterial:	SteelMetric Or SAE:	SAEPackaging Type:	BoxScrew Name:	OtherScrew Style:	Metal To MetalScrew Type:	Flat HeadSelf Drilling:	NoSelf Tapping:	NoThread Size:	1/4Package Quantity:	50

**Q: What is the pilot hole size?**
A: I think I used 7/32 bit.

**Q: Can an impact driver be used to install these screws?**
A: Yes! Pre drilled with 7/32" drill bit and then used a Ridgid impact driver to set the Dorman 370-225 stew into metal through 1/4" pre drilled wood floor planks.

**Q: What size torx do you need and is 7/32 but the right size bit?**
A: They take a t30 torx and yes a 7/32 drill bit the screws are 1/4 inch.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great for trailer repair
*by R***I on January 26, 2025*

Each time we have to replace our pressure treated decking on our trailers, we use these self tapping heavy duty screws. They don’t back out, there is minimal corrosion, and they hold fast. I suggest using a 1/2” corded drill, you will need the power and torque, we’ve found cordless drills or ratchets smaller than 1/2” do not perform as well.

### ⭐⭐⭐⭐⭐ Perfect for fastening trailer deck
*by T***D on August 23, 2024*

Pre drilled with 7/32nd and drove these right through 1/8 in mild steel. Everything worked perfectly. I had zero failure, every single bolt threaded snug. The job took less than half of the time I expected because these work so well.

### ⭐⭐⭐⭐⭐ Could not have worked better
*by J***L on December 2, 2023*

These worked perfectly attaching 2x8 pressure treated boards to my heavy duty trailer frame. Drilled the hole with the 7/32 bit through both the wood and the metal, switched to the T30 bit and screwed it down. I put in 36 screws in less than an hour. There was no need to drill out the wood with a larger bit like I expected I would have to do. If you have 2 drills, even easier. Easy as pie. Very pleased with the product. Not one stripped or broke a head off. Would definitely purchase again.

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---

*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-05-23*