--- product_id: 52401570 title: "SPAX 1/4\" x 3\" Exterior Washer Head Structural Wood Lag Screws Powerlags Torx T-Star (50 EA) Bit Included Heavy Duty Rust Resistant" brand: "spax" price: "230.85 DT" currency: TND in_stock: true reviews_count: 8 url: https://www.desertcart.tn/products/52401570-spax-1-4-x-3-exterior-washer-head-structural-wood store_origin: TN region: Tunisia --- # Grade 5 heat-treated strength High corrosion resistant coating Patented fast-drive thread tech SPAX 1/4" x 3" Exterior Washer Head Structural Wood Lag Screws Powerlags Torx T-Star (50 EA) Bit Included Heavy Duty Rust Resistant **Brand:** spax **Price:** 230.85 DT **Availability:** ✅ In Stock ## Summary > 🛠️ Upgrade your build game with SPAX PowerLags — where strength meets speed! ## Quick Answers - **What is this?** SPAX 1/4" x 3" Exterior Washer Head Structural Wood Lag Screws Powerlags Torx T-Star (50 EA) Bit Included Heavy Duty Rust Resistant by spax - **How much does it cost?** 230.85 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/52401570-spax-1-4-x-3-exterior-washer-head-structural-wood) ## Best For - spax enthusiasts ## Why This Product - Trusted spax brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Unmatched Durability:** Heat-treated Grade 5 carbon steel ensures maximum strength and minimal breakage. - • **Weatherproof Performance:** High Corrosion Resistant (HCR) coating makes these screws perfect for exterior and treated lumber projects. - • **Effortless Bit Engagement:** T-Star Plus head design delivers superior grip for quicker, less tiring installation. - • **Sleek Built-In Washer Head:** Contemporary low-profile design for a flawless, professional finish without extra washers. - • **Speedy Installation with Patented Threads:** Drive faster and reduce wood splitting thanks to innovative thread technology. ## Overview The SPAX 1/4" x 3" PowerLag screws combine German engineering with American manufacturing to deliver premium, heat-treated Grade 5 carbon steel fasteners featuring patented thread technology and a corrosion-resistant coating. Designed for exterior wood projects, these screws offer superior clamping power, faster installation, and long-lasting durability, making them the go-to choice for professionals who demand flawless, efficient results. ## Description Discover the Spax Advantage! this German engineered/American made Spax 1/4 x 3in. T-star Drive washer head HCR PowerLag offers a premium quality fastening solution to help ensure professional results in less time than inferior imported screws. Say good Bye to your fathers traditional lag. Spax PowerLags offer superior installation performance and durability over traditional lag screws and carriage bolts for structural wood construction. Made of carbon steel and coated for long term durability to ensure your project endures. Do it Once, do it right with Spax. ## Features - The trend setting low profile built-on washer head design offers a contemporary and sleek finished installation. Excellent draw down strength without the need for a separate washer delivers superior clamping ability and a easier installation - Check out our Threads!! our patented thread technology allows the screw to be driven faster, is easier to install, and reduces splitting in wood. Let Spax take some of the hassle out of your next project - High Corrosive resistant (HCR) coating makes these screws ideal for use in treated lumber and exterior applications - Heat treated Grade 5 Durability. Subjecting the screw to heat treating gives greater strength and reduces breakage - T-Star plus head provides superior bit engagement. Better bit engagement means quicker installation with less effort ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B018JQFBT6 | | Best Sellers Rank | #14,397 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #26 in Lag Screws | | Brand | SPAX | | Color | Black | | Customer Reviews | 4.8 4.8 out of 5 stars (613) 4.8 out of 5 stars | | Drive System | Torx | | Exterior Finish | Anti-Corrosion Topcoat | | Fastener Size | 1/4 inch x 3 inches | | Fastener Type | Wood Screws | | Finish Types | High Corrosion Resistant | | Global Trade Identification Number | 00712216019171 | | Grade Rating | grade_ 5 | | Head Type | Round | | Item Diameter | 0.25 inches | | Item Dimensions | 3 x 0.25 x 0.25 inches | | Item Weight | 1.7 pounds | | Manufacturer | Altenloh, Brink & Co | | Material Type | Carbon Steel | | Maximum Shear Strength | greater than 38 ksi | | Metal Type | High Carbon Steel | | Model | 4581820700765 | | Number Of Items | 50 | | Number Of Pieces | 50 | | Outside Diameter | 0.25 inches | | Part Number | 4581820700765 | | Screw Head Style | Washer Head | | Screw Point Style | Type 17 Point | | Set Name | SPAX PowerLags (50 Piece) | | Size Name | 1/4 x 3" | | Thread Coverage | Partially Threaded | | Thread Size | 1/4" | | Thread Style | Left Hand | | Thread Type | Un | | Unit Count | 50 Count | | Upc | 712216019171 | ## Product Details - **Exterior Finish:** Anti-Corrosion Topcoat - **Head Style:** Washer Head - **Item dimensions L x W x H:** 3 x 0.25 x 0.25 inches - **Material:** Carbon Steel - **Thread Size:** 1/4" ## Images ![SPAX 1/4" x 3" Exterior Washer Head Structural Wood Lag Screws Powerlags Torx T-Star (50 EA) Bit Included Heavy Duty Rust Resistant - Image 1](https://m.media-amazon.com/images/I/413nepDO-ZL.jpg) ![SPAX 1/4" x 3" Exterior Washer Head Structural Wood Lag Screws Powerlags Torx T-Star (50 EA) Bit Included Heavy Duty Rust Resistant - Image 2](https://m.media-amazon.com/images/I/71m-QNw8i3L.jpg) ![SPAX 1/4" x 3" Exterior Washer Head Structural Wood Lag Screws Powerlags Torx T-Star (50 EA) Bit Included Heavy Duty Rust Resistant - Image 3](https://m.media-amazon.com/images/I/61pHh6UZIoL.jpg) ## Available Options This product comes in different **Size, Number Of Items** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Love spax screws *by on Reviewed in the United States April 15, 2026* Love spax screws, very durable, easy to install with a drill and saves time drilling for carriage bolts, washers and nuts. Same strength. I use these when putting A frames together for outdoor swings I build. ### ⭐⭐⭐⭐⭐ good product *by on Reviewed in the United States April 14, 2026* Well made. Perfect for my purpose. ### ⭐⭐⭐⭐⭐ Seem to be well made. Haven't yet used them. *by on Reviewed in the United States April 17, 2026* Thick. Looking forward to using this type head which seems to be reviewed well by different sites as well. --- ## 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.tn/products/52401570-spax-1-4-x-3-exterior-washer-head-structural-wood](https://www.desertcart.tn/products/52401570-spax-1-4-x-3-exterior-washer-head-structural-wood) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-18*