---
product_id: 361711367
title: "4.2mm x 13mm (Pack of 50) Black Self Drilling Phillips Wafer Head Screws Steel Self Tapping Screws for Metal Sheets Roofing Windows - M11A"
brand: "screws city"
price: "฿991"
currency: THB
in_stock: true
reviews_count: 11
category: "Screws City"
url: https://www.desertcart.co.th/products/361711367-4-2mm-x-13mm-pack-of-50-black-self-drilling
store_origin: TH
region: Thailand
---

# Self-drilling point for fast install Black zinc plated corrosion resistance 4.2mm thread diameter 4.2mm x 13mm (Pack of 50) Black Self Drilling Phillips Wafer Head Screws Steel Self Tapping Screws for Metal Sheets Roofing Windows - M11A

**Brand:** screws city
**Price:** ฿991
**Availability:** ✅ In Stock

## Summary

> 🖤 Screw it right, screw it fast — the pro’s choice for flawless metal fastening!

## Quick Answers

- **What is this?** 4.2mm x 13mm (Pack of 50) Black Self Drilling Phillips Wafer Head Screws Steel Self Tapping Screws for Metal Sheets Roofing Windows - M11A by screws city
- **How much does it cost?** ฿991 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/361711367-4-2mm-x-13mm-pack-of-50-black-self-drilling)

## Best For

- screws city enthusiasts

## Why This Product

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

## Key Features

- • **Effortless Installation:** Self-drilling wafer head design eliminates pre-drilling, saving you time and hassle on every project.
- • **Durable Black Zinc Finish:** Corrosion-resistant coating ensures long-lasting performance even in moisture-prone environments.
- • **Precision Fit for Metal Sheets:** 4.2mm diameter and 13mm length engineered for secure fastening on thin metal surfaces.
- • **Fully Threaded for Maximum Grip:** Thread coverage along entire length guarantees superior holding power on roofing, windows, and metal sheets.
- • **Bulk Pack for Pro-Level Projects:** 50 screws per pack means you’re always ready to tackle multiple jobs without running out.

## Overview

These 4.2mm x 13mm black self-drilling wafer head screws are crafted from zinc-plated steel to DIN 7504 standards, designed specifically for quick and secure fastening of unsupported metal sheets. Featuring a self-drilling point and fully threaded shaft, they deliver maximum holding power without the need for pilot holes. The black zinc finish offers enhanced rust resistance, making them ideal for roofing, windows, and light to medium-duty metal projects. Pack of 50 ensures you stay stocked for all your DIY or professional needs.

## Description

High quality self drilling screws made of zinc plated steel and to DIN 7504 standards. Application: Quicker and easier to install. For fastening unsupported metal sheets. With self drilling point w/maximum holding power. The length of the screw is measured without the head.

Review: ⭐️⭐️⭐️⭐️☆ Great Screws for Quick and Easy Installation - I recently used the 4.2mm x 19mm Black Self-Drilling Screws for a DIY project, and they’ve been a reliable option for getting the job done. Here’s my review after using them for a few different tasks: Pros: Self-Drilling Feature: The self-drilling feature is a huge time-saver. I didn’t need to pre-drill any pilot holes—these screws go in smoothly and securely, making my project a lot easier. Sturdy and Durable: These screws feel solid and are built to last. They’re strong enough for most general-purpose tasks, and I didn’t have any issues with them stripping or breaking, even when tightening them into tough materials. Black Coating for Rust Resistance: The black finish looks great and provides some resistance to rust, which is ideal for outdoor or moisture-prone areas. It adds a bit of durability that I appreciate, especially for long-term use. Easy to Use: The screw heads fit perfectly with my screwdriver bit, making them easy to drive in without slipping or causing damage to the screw. I didn’t struggle with them at all. Good Quantity for the Price: You get a decent number of screws in the pack, making them a cost-effective option if you need to stock up for a variety of projects. Cons: Not the Best for Harder Materials: While these screws work great for wood and soft materials, they may struggle a bit when going into harder surfaces like metal or thick plastic. They still work, but it might take a little more effort. Sharp Points Can be Tricky in Some Situations: The sharp tip can sometimes catch on materials or be a bit difficult to start in thicker wood, though this is really just a minor issue if you’re careful. Might Not Hold Up for Heavy-Duty Use: These screws are good for general DIY projects, but for anything heavy-duty or construction-related, I’d suggest looking for a more robust option. They work great for everyday tasks but may not hold up in extreme conditions. Overall: The 4.2mm x 19mm Black Self-Drilling Screws are a solid choice for quick, DIY projects. They’re easy to use, durable, and perfect for wood or softer materials. While they might not be the best for tougher tasks or materials, they offer great value for the price, and I’ll definitely be using them again in the future.
Review: Good product - I needed to protect some old wood on a car port. I'd taken out the rotten wood, treated the rest, replaced some and used filler for the rest. I didn't want to use nails since I'm unsure how resilient the wood (and filler) would be to hammering nails, so bought these to attach strips of roofing felt to protect it further. Did a great job.

## Features

- Drilling capacity : from 1.75mm up to 3mm
- Steel Zinc Plated
- Thread Diameter: 4.2mm
- Length: 13mm
- Head Diameter: 10.2mm - 11.2mm

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09DNLKTWK |
| Best Sellers Rank | 15,115 in DIY & Tools ( See Top 100 in DIY & Tools ) 70 in Nut & Bolt Sets |
| Brand Name | Screws City |
| Colour | Black |
| Compatible Groove Diameter | 4.2 Millimeters |
| Country Of Origin | China |
| Customer Reviews | 4.4 4.4 out of 5 stars (361) |
| Drive System | Phillips |
| Exterior Finish | Metal,Steel,Zinc |
| Fastener Size | 4.2mm x 13mm |
| Fastener Type | Countersunk Head Drilling Screws with Tapping Screw Thread |
| Finish Types | Zinc Plated |
| Global Trade Identification Number | 05059629159731 |
| Head Type | Wafer |
| Item Diameter | 4.2 Millimetres |
| Manufacturer | Screws City |
| Manufacturer Part Number | DIN 7504 |
| Material Type | Steel Black Zinc Plated |
| Metal | Alloy Steel |
| Number of Pieces | 50 |
| Screw Head Style | Wafer |
| Screw Point Style | Self-Drill Point |
| Set Screw Thread Type | M |
| Size | 4.2mm x 13mm |
| Thread Class | 2A |
| Thread Coverage | Fully Threaded |
| Thread Size | 4.2mm |
| Thread Style | Right Hand m4.2 fully threaded |
| Thread Type | fully threaded |
| Unit Count | 50.0 Count |

## Product Details

- **Exterior finish:** Metal,Steel,Zinc
- **Head style:** Wafer
- **Material:** Steel Black Zinc Plated
- **Point style:** Self-Drill Point
- **Thread size:** 4.2mm

## Images

![4.2mm x 13mm (Pack of 50) Black Self Drilling Phillips Wafer Head Screws Steel Self Tapping Screws for Metal Sheets Roofing Windows - M11A - Image 1](https://m.media-amazon.com/images/I/71JnvJKpDdL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ ⭐️⭐️⭐️⭐️☆ Great Screws for Quick and Easy Installation
*by E***T on 26 April 2025*

I recently used the 4.2mm x 19mm Black Self-Drilling Screws for a DIY project, and they’ve been a reliable option for getting the job done. Here’s my review after using them for a few different tasks: Pros: Self-Drilling Feature: The self-drilling feature is a huge time-saver. I didn’t need to pre-drill any pilot holes—these screws go in smoothly and securely, making my project a lot easier. Sturdy and Durable: These screws feel solid and are built to last. They’re strong enough for most general-purpose tasks, and I didn’t have any issues with them stripping or breaking, even when tightening them into tough materials. Black Coating for Rust Resistance: The black finish looks great and provides some resistance to rust, which is ideal for outdoor or moisture-prone areas. It adds a bit of durability that I appreciate, especially for long-term use. Easy to Use: The screw heads fit perfectly with my screwdriver bit, making them easy to drive in without slipping or causing damage to the screw. I didn’t struggle with them at all. Good Quantity for the Price: You get a decent number of screws in the pack, making them a cost-effective option if you need to stock up for a variety of projects. Cons: Not the Best for Harder Materials: While these screws work great for wood and soft materials, they may struggle a bit when going into harder surfaces like metal or thick plastic. They still work, but it might take a little more effort. Sharp Points Can be Tricky in Some Situations: The sharp tip can sometimes catch on materials or be a bit difficult to start in thicker wood, though this is really just a minor issue if you’re careful. Might Not Hold Up for Heavy-Duty Use: These screws are good for general DIY projects, but for anything heavy-duty or construction-related, I’d suggest looking for a more robust option. They work great for everyday tasks but may not hold up in extreme conditions. Overall: The 4.2mm x 19mm Black Self-Drilling Screws are a solid choice for quick, DIY projects. They’re easy to use, durable, and perfect for wood or softer materials. While they might not be the best for tougher tasks or materials, they offer great value for the price, and I’ll definitely be using them again in the future.

### ⭐⭐⭐⭐⭐ Good product
*by R***N on 16 July 2023*

I needed to protect some old wood on a car port. I'd taken out the rotten wood, treated the rest, replaced some and used filler for the rest. I didn't want to use nails since I'm unsure how resilient the wood (and filler) would be to hammering nails, so bought these to attach strips of roofing felt to protect it further. Did a great job.

### ⭐⭐⭐⭐ Self tappers
*by R***E on 6 January 2024*

Work well

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-04-29*