--- product_id: 348505261 title: "4x20mm Wood Screws, Flat Head Screws for Wood,Fine Thread and Yellow Zinc Galvanized(100pcs)" brand: "topywmsp" price: "€ 20.54" currency: EUR in_stock: true url: https://www.desertcart.com.cy/products/348505261-4x20mm-wood-screws-flat-head-screws-for-wood-fine-thread store_origin: CY region: Cyprus --- # 4x20mm size 72h salt spray tested 100 pcs included 4x20mm Wood Screws, Flat Head Screws for Wood,Fine Thread and Yellow Zinc Galvanized(100pcs) **Brand:** topywmsp **Price:** € 20.54 **Availability:** ✅ In Stock ## Summary > 🔧 Screw it, get the best! 💪 ## Quick Answers - **What is this?** 4x20mm Wood Screws, Flat Head Screws for Wood,Fine Thread and Yellow Zinc Galvanized(100pcs) by topywmsp - **How much does it cost?** € 20.54 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/348505261-4x20mm-wood-screws-flat-head-screws-for-wood-fine-thread) ## Best For - topywmsp enthusiasts ## Why This Product - Trusted topywmsp brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **High Performance:** Self-tapping design ensures effortless installation in various materials. - • **Enhanced Strength:** Heat-treated for maximum tensile strength, reducing the risk of head damage. - • **Unmatched Durability:** Engineered with a thicker zinc coating for superior corrosion resistance. - • **User-Friendly Design:** Compatible with both manual and electric screwdrivers for seamless use. - • **Versatile Applications:** Perfect for wood, plasterboard, concrete, and more—ideal for home and engineering projects. ## Overview These 4x20mm flat head wood screws come in a pack of 100, featuring a robust yellow zinc galvanization that ensures high corrosion resistance and durability. Designed for versatility, they are perfect for various applications including wood, plasterboard, and concrete, making them an essential addition to any toolbox. ## Description 4x20mm Wood Screws, Flat Head Screws for Wood,Fine Thread and Yellow Zinc Galvanized(100pcs) ## Features - HEAVIER&THICKER：When the quantity and model are the same,Our screws are heavier;zinc coating is thicker. - HIGH CORROSION RESISTANCE:The screws are yellow zinc passivated and to withstand 72 hours salt spray test, never rust is guaranteed. - HIGH HARDNESS:These self tapping screws are heat treatment improves the tensile strength.Maximum reduction damaged head. - HIGH STRENGTH:The outdoor screws have high Strength philips head,Perfect match with manual and electric screwdrivers. - VARIOUS PRODUCT USES：High performace for the home and engineering,These flat head screws can used for wood、plasterboard、chipboard、concrete、wall、deck、plastic. ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | Zhengzhou HP Ltd | | Part number | ZZWLSA08078 | | Item Weight | 150 g | | Manufacturer reference | ZZWLSA08078 | | Size | 4x20mm | | Colour | Yellow | | Material | alloy_steel，Carbon Steel， Zinc Passivated | | Number of Pieces | 100 | | Head Style | Cross Flat Head | | Cutting Diameter | 4 Millimetres | | Measurement System | Metric | | Special Features | self drilling , self tapping | | Specific uses | home and engineering use | | Batteries included? | No | | Batteries Required? | No | | Item diameter | 4 Millimetres | ## Product Details - **Material:** alloy_steel，Carbon Steel， Zinc Passivated - **Drive system:** PH2 - **Head style:** Cross Flat Head - **Item dimensions L x W x H:** 4 x 4 x 20 millimetres - **Exterior finish:** Zinc ## Images ![4x20mm Wood Screws, Flat Head Screws for Wood,Fine Thread and Yellow Zinc Galvanized(100pcs) - Image 1](https://m.media-amazon.com/images/I/51e8mLD6f+S.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Can you use these in concrete/cement...?** A: Yes friend, But，If you wall is concrete or brick/cement,You need to prepare some plugs to use,And use the plug combined with the suitable screw. After choosing the suitable screw and plug,dirll a hole that is slightly longer than the plug.Tap in the plug with a hammer and then drive in the screw. Tips：A rule of thumb is that the lenth of the screw should be twice as long as the thickness of the object you intend to install onto the wood wall. **Q: Do you have to pre drill holes first in wood then screw in or screw directly into wood (fences)?** A: You can probably screw directly into the wood, if the wood is relatively soft (pine as opposed to oak), but it's generally easier if you pre-drill a hole first as sometimes the screw head might strip if there is no pilot hole and you have to use a lot of force to turn the screw. ## Frequently Bought Together - 4x20mm Wood Screws, Flat Head Screws for Wood,Fine Thread and Yellow Zinc Galvanized(100pcs) - ForgeFix Multi-Purpose Single Thread Screws | 4.0 x 40mm | Zinc Yellow Passivated | Box 200 - ForgeFix Multi-Purpose Single Thread Screws | 5.0 x 20mm | Zinc Yellow Passivated | Box 200 --- ## 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.com.cy/products/348505261-4x20mm-wood-screws-flat-head-screws-for-wood-fine-thread](https://www.desertcart.com.cy/products/348505261-4x20mm-wood-screws-flat-head-screws-for-wood-fine-thread) --- *Product available on Desertcart Cyprus* *Store origin: CY* *Last updated: 2026-04-25*