{"product_id":"malco-8x3-4-zip-in-self-piercing-screws-1-4-slotted-hex-washer-head-sheet-metal-screws-fast-easy-piercing-zinc-plated-10000-count","title":"Malco 8X3\/4 Zip-In Self-Piercing Screws | 1\/4\" Slotted Hex Washer Head Sheet Metal Screws  | Fast \u0026 Easy Piercing | Zinc Plated (10000 Count)","description":"\u003cdiv\u003e\n\u003cp\u003eWhen fast, dependable sheet-metal fastening is non-negotiable, Malco Zip-In 8X3\/4 Self-Piercing Screws (HW8X3\/4Z) are built to deliver. This zinc-plated, 1\/4\" slotted hex washer head screw is designed for quick, confident piercing through heavier gauge metals—so you spend less time driving and more time building.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eWhat sets Zip-In apart\u003c\/strong\u003e is a precision-engineered thread profile and a smart heat-treat process that markers the difference between “almost there” and “done.” A single starting thread runs all the way to the tip, providing immediate piercing power. As soon as the point begins to enter the metal, a second thread above the tip engages, drilling in quickly and securing the fastener with less effort. The result is faster driving, cleaner starts, and a stronger hold in demanding metal assemblies.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eInnovative thread design\u003c\/strong\u003e: Start-to-tip thread that powers entry, plus a second thread that drives the screw home after initial penetration.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHeat-treated for strength\u003c\/strong\u003e: A refined point that stays sharp and strong, ensuring reliable performance through thicker sheet metal.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHeavy-gauge capability\u003c\/strong\u003e: Specifically engineered to fasten heavier gauges of sheet metal more efficiently than typical self-piercing screws.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDurable zinc finish\u003c\/strong\u003e: Zinc-plated coating protects against corrosion in challenging environments, extending service life.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eProduct details at a glance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eSize: 8 x 3\/4\"\u003c\/li\u003e \u003cli\u003eDrive type: 1\/4\" Slotted Hex Washer Head\u003c\/li\u003e \u003cli\u003eFinish: Zinc Plated\u003c\/li\u003e \u003cli\u003eCount: 10,000 screws per package\u003c\/li\u003e \u003cli\u003eApplication: Self-piercing screw designed for reliable fastening in sheet metal projects\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIdeal for professional installers and serious DIYers tackling metalwork—roofing, ductwork, flashing, and other thick-gauge sheet metal tasks. With Malco Zip-In HW8X3\/4Z, you gain a fast, precise tool that reduces drive time, improves penetration, and delivers durable, high-strength joints in a wide range of metal projects. Add these to your toolbox for a dependable, high-performance fastening solution that keeps pace with demanding workloads.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Malco","offers":[{"title":"Bulk \/ 3\/4 In. \/ #8","offer_id":42658647932976,"sku":"574-HW8X3\/4Z","price":403.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/3883\/0640\/files\/65bc2440-2649-4895-ac49-9439025fdbcd.png?v=1766159484","url":"https:\/\/usatooldepot.com\/products\/malco-8x3-4-zip-in-self-piercing-screws-1-4-slotted-hex-washer-head-sheet-metal-screws-fast-easy-piercing-zinc-plated-10000-count","provider":"USA Tool Depot","version":"1.0","type":"link"}