--- product_id: 104530906 title: "WoodPro Fasteners ST516X4B 5/16-Inch by 4-Inch Length Round Washer Head Exterior Wood Screws, 250-Pack , Gold" brand: "woodpro" price: "¥59871" currency: JPY in_stock: true category: "Woodpro" url: https://www.desertcart.jp/products/104530906-woodpro-fasteners-st516x4b-5-16-inch-by-4-inch-length store_origin: JP region: Japan --- # T-30 Star Drive for slip-free torque 5/16" x 4" length precision 1,500-hour golden E-Coat corrosion shield WoodPro Fasteners ST516X4B 5/16-Inch by 4-Inch Length Round Washer Head Exterior Wood Screws, 250-Pack , Gold **Brand:** woodpro **Price:** ¥59871 **Availability:** ✅ In Stock ## Summary > 🔩 Screw smarter, build stronger — the golden standard in exterior fasteners! ## Quick Answers - **What is this?** WoodPro Fasteners ST516X4B 5/16-Inch by 4-Inch Length Round Washer Head Exterior Wood Screws, 250-Pack , Gold by woodpro - **How much does it cost?** ¥59871 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/104530906-woodpro-fasteners-st516x4b-5-16-inch-by-4-inch-length) ## Best For - woodpro enthusiasts ## Why This Product - Trusted woodpro brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Bulk Value Pack:** 250 screws plus a 25mm T-30 Star Bit included — professional-grade quality without the premium price tag. - • **Slip-Free Drive:** Secure T-30 Star Drive reduces bit cam-out, letting you work faster and with less frustration. - • **Effortless Precision:** Patented ASTER thread combined with a sharp Type-17 point guarantees quick starts and smooth drilling every time. - • **Unmatched Durability:** PPG Industries' 1,500-hour golden E-Coat ensures your projects withstand the elements with premium corrosion resistance. - • **Optimized for Exterior Excellence:** Perfect for post-to-pole framing and insulation panels, these screws deliver superior holding power on rough and treated lumber. ## Overview WoodPro Fasteners ST516X4B 5/16" x 4" round washer head wood screws come in a 250-pack with a T-30 Star Bit. Featuring a patented ASTER thread and sharp Type-17 point, these screws offer quick starting and effortless drilling. Coated with PPG Industries' industry-leading 1,500-hour golden Electro-Polyseal finish, they provide superior corrosion resistance and chip protection, making them ideal for demanding exterior applications like post-to-pole framing and insulation panels. ## Description Product Description WoodPro Washer Head Screws are coated by PPG Industries with an industry leading 1,500 hour Electro-Polyseal coating for consistent layering that prevents recess fill while offering superior corrosion protection. The stronger PPG coating helps prevent chipping for added exterior corrosion protection. The secure STAR drive helps reduce bit slippage and a sharp Type-17 point with a patented ASTER thread provides quick starting and effortless drilling. These screws can be used for a wide range of interior and exterior applications. Primary applications include: Post to pole framing, Insulation panels. From the Manufacturer WoodPro Washer Head Screws are coated by PPG Industries with an industry leading 1,500 hour for consistent layering that prevents recess fill while offering superior corrosion protection. The stronger PPG coating helps prevent chipping for added exterior corrosion protection. The secure STAR drive helps reduce bit slippage and a sharp Type-17 point with a patented ASTER thread provides quick starting and effortless drilling. These screws can be used for a wide range of interior and exterior applications. Primary applications include: Post to pole framing, Insulation panels. ## Features - 5/16 x 4-Inch length, Includes One 25mm T-30 Star Bit - T-30 Star Drive, Torx(tm) Compatible - Patented ASTER thread for quick starting - Sharp Type-17 Point for easy drilling - PPG Industries 1,500 Hour Golden E-Coat ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B009A5FH5E | | Best Sellers Rank | #162,573 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #157 in Lag Screws | | Brand | Woodpro | | Color | Gold | | Customer Reviews | 4.8 4.8 out of 5 stars (137) | | Drive System | Torx | | Exterior Finish | Gold Galvanized | | Fastener Size | 4 inches | | Fastener Type | Wood Screws | | Finish Types | PPG Golden 1,500 Hour E-Coat | | Global Trade Identification Number | 00649853885848 | | Head Type | Round | | Included Components | 5/16 x 4 In. 1500 Hour PPG Golden E-Coat Washer Head Screws | | Item Diameter | 0.31 inches | | Item Dimensions | 10 x 5.5 x 5.5 inches | | Item Weight | 9.9 pounds | | Manufacturer | WoodPro Fasteners | | Material Type | Steel | | Metal Type | Alloy Steel | | Model | ST516X4B | | Number Of Items | 250 | | Number of Packs | 1 | | Number of Pieces | 250 | | Outside Diameter | 0.31 inches | | Part Number | ST516X4B | | Screw Head Style | Round | | Screw Point Style | Type 17 Point | | Set Name | WoodPro 5/16 x 4-inch Round Washer Head Wood Screws (250-Pack) with T-30 Star Bit | | Set Screw Thread Type | ASTER | | Size Name | 4 inches | | Thread Coverage | Partially Threaded | | Thread Size | 5/16" | | Thread Style | ASTER | | Thread Type | Un | | UPC | 649853885848 | | Unit Count | 250 Count | ## Product Details - **Exterior Finish:** Gold Galvanized - **Head Style:** Round - **Item dimensions L x W x H:** 10 x 5.5 x 5.5 inches - **Material:** Steel - **Thread Size:** 5/16" ## Images ![WoodPro Fasteners ST516X4B 5/16-Inch by 4-Inch Length Round Washer Head Exterior Wood Screws, 250-Pack , Gold - Image 1](https://m.media-amazon.com/images/I/51t19nLl8kL.jpg) ![WoodPro Fasteners ST516X4B 5/16-Inch by 4-Inch Length Round Washer Head Exterior Wood Screws, 250-Pack , Gold - Image 2](https://m.media-amazon.com/images/I/21np-t7hxiL.jpg) ![WoodPro Fasteners ST516X4B 5/16-Inch by 4-Inch Length Round Washer Head Exterior Wood Screws, 250-Pack , Gold - Image 3](https://m.media-amazon.com/images/I/41JMAFWBHML.jpg) ![WoodPro Fasteners ST516X4B 5/16-Inch by 4-Inch Length Round Washer Head Exterior Wood Screws, 250-Pack , Gold - Image 4](https://m.media-amazon.com/images/I/51d72urrD0L.jpg) --- ## 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.jp/products/104530906-woodpro-fasteners-st516x4b-5-16-inch-by-4-inch-length](https://www.desertcart.jp/products/104530906-woodpro-fasteners-st516x4b-5-16-inch-by-4-inch-length) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-11-02*