{"product_id":"malco-8x11-2-white-zip-in-self-piercing-screws-1-4-slotted-hex-washer-head-sheet-metal-screws-fast-easy-piercing-zinc-plated-4500-count","title":"Malco 8X11\/2 White Zip-In Self-Piercing Screws | 1\/4\" Slotted Hex Washer Head Sheet Metal Screws  | Fast \u0026 Easy Piercing | Zinc Plated (4500 Count)","description":"\u003cdiv\u003e\n\u003cp\u003eMalco HW8X11\/2ZW Zip-In Self-Piercing Screws redefine metal fastenings with a purpose-built thread design and a precision heat-treat process. The proprietary Zip-In geometry tapers to a fine, sharp point while preserving core point strength, enabling clean, rapid penetration into sheet metal. A single starting thread forms down to the very tip, delivering an immediate bite, and a second thread above the point engages after initial penetration to drill in the screw double fast. The result is faster driving and a superior hold on heavier gauges of sheet metal—without the need for extensive pre-drilling.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAdvanced dual-thread action\u003c\/strong\u003e: one starting thread to the tip plus a second thread above the point ensures quick penetration and strong seat in fewer turns.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePrecision heat treatment\u003c\/strong\u003e: designed to maintain point strength while delivering a razor-sharp tip for consistent starts and reduced cam-out.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSelf-piercing efficiency\u003c\/strong\u003e: minimizes or eliminates pre-drilling, speeding up assemblies in metal roofing, ductwork, enclosures, and fabrication projects.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDurable zinc plating\u003c\/strong\u003e: corrosion-resistant finish that holds up in everyday use and exposed metal environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e1\/4\" slotted hex washer head\u003c\/strong\u003e: compatible with common drivers, providing a secure seating and a clean, flush installation.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHeavy-gauge capability\u003c\/strong\u003e: engineered to fasten thicker sheet metal more effectively than typical self-piercing screws.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBulk package\u003c\/strong\u003e: 4500-count pack ensures you have ample supply for larger jobs without frequent reorders.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch4\u003eIdeal applications and use cases\u003c\/h4\u003e\n\u003cp\u003eThese Zip-In self-piercing screws are well-suited for HVAC ductwork, metal ceilings, wall panels, roofing projects, and general sheet-metal fabrication where quick, dependable fastening is essential. They excel in environments where corrosion resistance is a priority and where speed and strength matter—reducing installation time on assemblies that involve thicker gauge sheet metal. If you’re upgrading or repairing metal enclosures, equipment housings, or metal siding, Zip-In screws provide a clear efficiency advantage over traditional fasteners.\u003c\/p\u003e \u003ch4\u003eWhy choose Zip-In over standard self-piercing screws?\u003c\/h4\u003e\n\u003cp\u003eThe distinctive Zip-In thread arrangement and heat-treated tip translate to noticeably faster drive times, fewer misstarts, and a more consistent engagement in heavier gauges. The combination of a finely tapered point, a robust starting thread, and a second-thread engagement means you get reliable penetration and superior clamping force with fewer turns—a practical advantage on busy job sites and in high-volume production.\u003c\/p\u003e \u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003cp\u003eProduct: Malco HW8X11\/2ZW Zip-In Self-Piercing Screws\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eLength: 8 x 1-1\/2 inches\u003c\/li\u003e \u003cli\u003eHead: Slotted Hex Washer\u003c\/li\u003e \u003cli\u003eDrive: Slotted with Hex Washer\u003c\/li\u003e \u003cli\u003eFinish: Zinc Plated\u003c\/li\u003e \u003cli\u003eMaterial: Self-piercing steel\u003c\/li\u003e \u003cli\u003eQuantity: 4500 screws per pack\u003c\/li\u003e \u003cli\u003eApplications: Sheet metal fastening, heavy-gauge metalwork, HVAC, ductwork, enclosures\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoose Zip-In for faster, more reliable sheet metal assembly where penetration power, thread-driven bite, and corrosion resistance matter most. This bulk pack keeps your workflow moving, so you can finish projects faster and with fewer interruptions.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Malco","offers":[{"title":"Bulk \/ 1-1\/2 In. \/ #8","offer_id":42658647310384,"sku":"574-HW8X11\/2ZW","price":380.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/3883\/0640\/files\/eac33ace-87cc-4732-a832-d6c737f07351.png?v=1766159482","url":"https:\/\/usatooldepot.com\/products\/malco-8x11-2-white-zip-in-self-piercing-screws-1-4-slotted-hex-washer-head-sheet-metal-screws-fast-easy-piercing-zinc-plated-4500-count","provider":"USA Tool Depot","version":"1.0","type":"link"}