---
product_id: 47943293
title: "Multi-Purpose Single Thread Screws | 4.0 x 40mm | Zinc Yellow Passivated | Box 200"
brand: "forgefix"
price: "฿904"
currency: THB
in_stock: true
reviews_count: 13
category: "Forgefix"
url: https://www.desertcart.co.th/products/47943293-multi-purpose-single-thread-screws-4-0-x-40mm-zinc
store_origin: TH
region: Thailand
---

# Single thread for faster insertion 4.0mm diameter precision Deep recess for firmer positive drive Multi-Purpose Single Thread Screws | 4.0 x 40mm | Zinc Yellow Passivated | Box 200

**Brand:** forgefix
**Price:** ฿904
**Availability:** ✅ In Stock

## Summary

> 🔧 Screw it right, screw it fast — ForgeFix your projects with confidence!

## Quick Answers

- **What is this?** Multi-Purpose Single Thread Screws | 4.0 x 40mm | Zinc Yellow Passivated | Box 200 by forgefix
- **How much does it cost?** ฿904 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/47943293-multi-purpose-single-thread-screws-4-0-x-40mm-zinc)

## Best For

- forgefix enthusiasts

## Why This Product

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

## Key Features

- • **Unmatched Grip:** Single thread design maximizes holding power, especially in MDF and particle boards.
- • **Effortless Speed:** Extra deep insert bit recess ensures quicker, smoother screw driving with less fatigue.
- • **Wax-Coated Efficiency:** Special wax coating reduces friction, making every screw glide in with ease.
- • **Versatile Compatibility:** Perfect for softwoods, hardwoods, chipboards, and fibreboards—one box, endless projects.
- • **Durability You Can Trust:** Passivated yellow zinc finish resists corrosion, keeping your work strong and lasting.

## Overview

ForgeFix Multi-Purpose Single Thread Screws (4.0 x 40mm) come in a convenient box of 200, featuring a zinc yellow passivated finish for corrosion resistance. Designed with a single thread and deep insert bit recess, these screws offer faster, easier insertion and superior holding power across a variety of wood substrates including MDF, softwoods, and hardwoods. The special wax coating further enhances driving speed and reduces wear, making them a top choice for professionals and DIY enthusiasts alike.

## Description

Versatile single-thread woodscrews with deep recess for quicker, easier insertion. Wax coating and design provide increased holding power for various materials.

Review: Really good quality, really good price - Love these screws, have a few projects going on and always buy them. Price goes up and down but never above the high street diy shops and with delivery included they're easy to get when needed. Decent strength too, had a couple of thousand but with only 1 or 2 break. Best bit though is the pictures on the box that shows the wall plug and drill bit that should be used with them.
Review: Decent screws that actually bite properly - Decent screws that actually bite properly. I use these for all sorts of little jobs around the house and they have never let me down. They drive in cleanly, the thread bites straight away and they do not chew up the wood like some of the cheaper boxes do. The heads do not strip easily either, even when you are working at an awkward angle.

## Features

- Single thread multi-purpose woodscrews
- Ideal for fixing into a range of substrates including softwoods, hardwoods, chipboards and fibreboards
- Quicker and easier insertion thanks to an extra deep insert bit recess, which enables a firmer positive drive
- Single thread and special wax coating also increases speed and ease of insertion
- Single thread design provides increased holding power particularly when used with particle boards like MDF

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00ENFPNNW |
| Assembled Diameter | 4 Millimetres |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 1,401 in DIY & Tools ( See Top 100 in DIY & Tools ) 2 in Self-tapping Screws |
| Colour | Multi-coloured |
| Customer Reviews | 4.6 4.6 out of 5 stars (3,065) |
| Cutting Diameter | 4 Millimetres |
| Date First Available | 12 Aug. 2011 |
| Finish | Passivated Yellow Zinc |
| Head Style | Flat |
| Included Components | Multi-Purpose Pozi Compatible Screw CSK ST ZYP 4.0 x 40mm Box 200 |
| Item Package Quantity | 1 |
| Item Weight | 399 g |
| Item model number | MPS440Y |
| Manufacturer | ForgeFix |
| Material | Zinc |
| Measurement System | Metric |
| Number of Pieces | 200 |
| Part Number | FORMPS440Y |
| Power Source | AC |
| Shape | cylinder |
| Size | 4.0 x 40mm |
| Style | Single |

## Product Details

- **Exterior finish:** Zinc
- **Head style:** Flat
- **Item dimensions L x W x H:** 10.5 x 8 x 5 centimetres
- **Material:** Zinc
- **Thread size:** Threaded

## Images

![Multi-Purpose Single Thread Screws | 4.0 x 40mm | Zinc Yellow Passivated | Box 200 - Image 1](https://m.media-amazon.com/images/I/51F9w7bA2FL.jpg)

## Available Options

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

## Questions & Answers

**Q: Are these 4cm long?**
A: yes

**Q: Do I need to drill a hole first or are they self tapping**
A: It really depends on the material you are using and the finish you want. Personally I would always use a small pilot hole to guide the screw and prevent the wood splitting but I would also countersink the head too. It takes next to no time and gives a much better finish - but then I'm a bit old school  😁

**Q: ``im looking 5inches long in these can you tell me how long these are``**
A: They are 40 mm long - roughly 1.5 inches, so nowhere near long enough for you. 5 inches equates to around 125 mm.

**Q: Can you use these to put a toddler bed together**
A: They would work a treat, I put a six foot wooden garden fence up using these and it's still standing one year later.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Really good quality, really good price
*by C***L on 22 December 2025*

Love these screws, have a few projects going on and always buy them. Price goes up and down but never above the high street diy shops and with delivery included they're easy to get when needed. Decent strength too, had a couple of thousand but with only 1 or 2 break. Best bit though is the pictures on the box that shows the wall plug and drill bit that should be used with them.

### ⭐⭐⭐⭐⭐ Decent screws that actually bite properly
*by I***S on 27 November 2025*

Decent screws that actually bite properly. I use these for all sorts of little jobs around the house and they have never let me down. They drive in cleanly, the thread bites straight away and they do not chew up the wood like some of the cheaper boxes do. The heads do not strip easily either, even when you are working at an awkward angle.

### ⭐⭐⭐⭐ Good screws
*by P***S on 13 August 2025*

Good product good price

## Frequently Bought Together

- ForgeFix Multi-Purpose Single Thread Screws | 4.0 x 40mm | Zinc Yellow Passivated | Box 200
- iexcell 250 Pcs M3 x 6/8/10/12/16 Alloy Steel 12.9 Grade SCM435 High Tensile Hex Socket Button Head Cap Screws Bolts Assortment Kit
- iexcell 250 Pcs M3 x 4/6/8/10/12 Stainless Steel 304 Hex Socket Button Head Cap Screws Bolts Assortment Kit

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.co.th/products/47943293-multi-purpose-single-thread-screws-4-0-x-40mm-zinc](https://www.desertcart.co.th/products/47943293-multi-purpose-single-thread-screws-4-0-x-40mm-zinc)

---

*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-02-22*