--- product_id: 58563603 title: "GRK 01079#8 x 2-1/2\" R4™ Multi-Purpose Screws 650 Count" brand: "grk" price: "C$10977" currency: NIO in_stock: true reviews_count: 5 url: https://www.desertcart.ni/products/58563603-grk-01079-8-x-2-1-2-r4-multi-purpose store_origin: NI region: Nicaragua --- # 650 screws Weatherproof Self-tapping GRK 01079#8 x 2-1/2" R4™ Multi-Purpose Screws 650 Count **Brand:** grk **Price:** C$10977 **Availability:** ✅ In Stock ## Summary > 🔧 Screw it, get it done with style! ## Quick Answers - **What is this?** GRK 01079#8 x 2-1/2" R4™ Multi-Purpose Screws 650 Count by grk - **How much does it cost?** C$10977 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/58563603-grk-01079-8-x-2-1-2-r4-multi-purpose) ## Best For - grk enthusiasts ## Why This Product - Trusted grk brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Massive Supply:** A generous 650-count pail keeps you stocked for all your projects. - • **Weather Warrior:** Climatek coating ensures durability in any environment. - • **Precision Engineering:** W-Cut thread design for superior grip and countersinking. - • **Unmatched Versatility:** Perfect for wood, plastic, and metal projects. - • **Effortless Installation:** Self-tapping design saves time and effort. ## Overview The GRKFasteners-01079 R4 ProPak Multipurpose Screws are a robust solution for all your fastening needs, featuring a self-tapping design, climate-resistant coating, and a generous supply of 650 screws, making them ideal for various materials including wood, plastic, and metal. ## Description Product Description GRK R4 Multi-Purpose Screws are self-tapping with a countersinking head. They require no pre-drilling. This self-countersinking screw has a new underhead with saw-blade like cutting teeth and six self-contained cutting pockets. This transports the drill dust away from the edge of the screw hole while cutting a perfectly clean hole without cracking the surface. The screw head closes the hole off with precision, leaving no damaged fibers around the head. The R4 is available in 59 sizes and works well in wood, particle board, plastic, sheet metal, cement fiberboard, composite decking, wood decking, and melamine. Some sizes are available in PHEINOX Stainless Steel. From the Manufacturer GRK R4 Multi-Purpose Screws are self-tapping with a countersinking head. They require no pre-drilling. This self-countersinking screw has a new underhead with saw-blade like cutting teeth and six self-contained cutting pockets. This transports the drill dust away from the edge of the screw hole while cutting a perfectly clean hole without cracking the surface. The screw head closes the hole off with precision, leaving no damaged fibers around the head. The R4 is available in 59 sizes and works well in wood, particle board, plastic, sheet metal, cement fiberboard, composite decking, wood decking, and melamine. Some sizes are available in PHEINOX Stainless Steel. ## Features - About this item - #6 and #8 screws use T-15 bit; #9, #10, and #12 use bit T-25 Self-tapping, countersinking head; W-Cut thread design One pail contains 650 screws Climatek coated for all weather corrosion protection conforms with ICC#2442 For use in wood, particle-board, cement fiberboard, plastic, and sheet metal ›See more product details ## Images ![GRK 01079#8 x 2-1/2" R4™ Multi-Purpose Screws 650 Count - Image 1](https://m.media-amazon.com/images/I/51MZRl7V62L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Fastened subfloor using these scews *by J***N on Reviewed in the United States on May 16, 2013* I used these screws to fasten the subfloor in my house. One box did 500 square foot at one foot intervals. The tap easily and drive straight. Once the bit is set the star head does not slip. Putting the screws on the driver bit does take a bit longer than other types of screws. I found the included bit barely lasts the box before the edges wear down. ### ⭐⭐⭐⭐⭐ Just what I needed. *by J***L on Reviewed in the United States on February 12, 2020* Used them to fasten OSB subfloor to joists. ### ⭐⭐⭐ Good *by S***. on Reviewed in the United States on June 25, 2019* Good --- ## 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.ni/products/58563603-grk-01079-8-x-2-1-2-r4-multi-purpose](https://www.desertcart.ni/products/58563603-grk-01079-8-x-2-1-2-r4-multi-purpose) --- *Product available on Desertcart Nicaragua* *Store origin: NI* *Last updated: 2026-04-24*