---
product_id: 69975806
title: "ITW Brands 23416 575PC 9X1-5/8 Backer-ON, 1.625 inches"
brand: "itw brands"
price: "€ 80.94"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.fr/products/69975806-itw-brands-23416-575pc-9x1-5-8-backer-on-1
store_origin: FR
region: France
---

# 575-piece bulk pack T-25 star drive for one-handed use Climacoat corrosion-resistant finish ITW Brands 23416 575PC 9X1-5/8 Backer-ON, 1.625 inches

**Brand:** itw brands
**Price:** € 80.94
**Availability:** ✅ In Stock

## Summary

> 🔧 Screw smarter, not harder—power through projects with ITW’s pro-grade precision!

## Quick Answers

- **What is this?** ITW Brands 23416 575PC 9X1-5/8 Backer-ON, 1.625 inches by itw brands
- **How much does it cost?** € 80.94 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/69975806-itw-brands-23416-575pc-9x1-5-8-backer-on-1)

## Best For

- itw brands enthusiasts

## Why This Product

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

## Key Features

- • **Flush Serrated Head:** Designed for seamless, flush seating that guarantees a clean, professional finish.
- • **One-Handed Star Drive:** T-25 Torx system ensures quick, slip-free installation with just one hand.
- • **Massive 575-Piece Pack:** Never run out mid-project—bulk convenience for pros and DIYers alike.
- • **Premium Grade Strength:** Engineered to handle 250-350 lbs shear strength—built tough for demanding wood applications.
- • **Climacoat Corrosion Resistance:** Epoxy-coated steel resists rust and wear, perfect for long-lasting durability.

## Overview

The ITW Brands 23416 Backer-ON screws come in a massive 575-piece pack, featuring a 1.625-inch length and a serrated flat head for flush seating. Equipped with a T-25 star drive for efficient one-handed installation, these premium-grade steel screws boast a Climacoat epoxy finish for superior corrosion resistance, making them ideal for durable wood fastening tasks.

## Description

ITW Brands 23416 575PC 9X1-5/8 Backer-ON, 1.625 inches, No Color

## Features

- Quantity: 575-per pack
- Serrated head for flush seating
- Climacoat corrosion resistant finish
- Star drive with T-25 bit for one-handed installation

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Steel |
| Drive System | Torx |
| Head Style | Flat |
| Exterior Finish | Epoxy |
| Thread Size | #9 |
| Point Style | Flat Point |
| Metal Type | Fiber Coated |
| Brand | ITW BRANDS |
| Color | No Color |
| Head Type | Flat |
| Item Weight | 4.54 g |
| Thread Type | Coarse-fine (Non-standard) |
| Thread Coverage | Partially Threaded |
| Fastener Type | Cement Board Screws |
| Grade Rating | Premium |
| Set Screw Thread Type | Non-standard (Coarse-fine) |
| Thread Style | Right Hand |
| Thread Class | 3B |
| Fastener Size | 1.625 inches or 1 5/8 inch |
| Size | 1.625 inches |
| Item Diameter | 1.63 Inches |
| Compatible groove diameter | 0.16 Inches |
| Maximum Shear Strength | 250-350 pounds |
| Number of Pieces | 575 |
| UPC | 092097234161 |
| Global Trade Identification Number | 00092097234161 |
| Manufacturer | ITW BRANDS |
| Part Number | 23416 |
| Item Weight | 0.16 ounces |
| Country of Origin | USA |
| Item model number | 23416 |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Cutting Diameter | 1.63 Inches |
| Measurement System | Imperial |
| Usage | Wood |
| Included Components | Hardware; Fasteners & Hooks;self-drilling-screws |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | Warranty |

## Product Details

- **Material:** Steel
- **Head Style:** Flat
- **Item dimensions L x W x H:** 5.5 x 4.5 x 5.2 inches
- **Exterior Finish:** Epoxy
- **Thread Size:** #9

## Images

![ITW Brands 23416 575PC 9X1-5/8 Backer-ON, 1.625 inches - Image 1](https://m.media-amazon.com/images/I/7169Uuh1xaL.jpg)

## Available Options

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

## Questions & Answers

**Q: If Backer-on screws are good for wet conditions such as shower enclosures, why aren't they approved for exterior use?**
A: I’ve used backer on screws for the exterior. If you look under epoxy coated screws they are very corrosive resistant and recommended for exterior although I will say that ceramic coated I believe her better.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good for shower install
*by G***G on September 17, 2025*

Well made and exactly what you need to install cement board for a fully waterproof shower.

### ⭐⭐⭐⭐⭐ More than enough
*by K***A on March 31, 2023*

Didn't have to leave and go get, even have extra left. Did the Job just fine.

### ⭐⭐⭐⭐⭐ Really? A screw review?
*by A***R on May 12, 2025*

Ok. So great product, penetrates cement board easily, grabs the wood structure well. What more can you want for a screw?

## Frequently Bought Together

- ITW Brands 23416 575PC 9X1-5/8 Backer-ON, 1.625 inches
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*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-01-31*