{"product_id":"malco-8x1-zip-in-self-piercing-screws-1-4-slotted-hex-washer-head-sheet-metal-screws-fast-easy-piercing-zinc-plated-3500-count","title":"Malco 8X1 Zip-In Self-Piercing Screws | 1\/4\" Slotted Hex Washer Head Sheet Metal Screws  | Fast \u0026 Easy Piercing | Zinc Plated (3500 Count)","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Malco Zip-In 8X1 Self-Piercing Screws — a purpose-built solution for fast, reliable sheet-metal fastening. This 3500-count zinc-plated box pairs a precisely engineered drive with a powerful piercing action, making it the smart choice for professional contractors and serious DIYers alike.\u003c\/p\u003e \u003cp\u003eThe Zip-In advantage starts with its unique thread design and a rigorous heat-treat process. The screw tapers to a fine, sharp point without sacrificing point strength, so you get instant bite as soon as the tip touches metal. A single starting thread is formed down to the very tip, delivering immediate penetration and a solid seat. Then, a second thread above the point engages after initial penetration, drilling in twice as fast and locking in a secure hold with less effort.\u003c\/p\u003e \u003cp\u003eKey features that matter for real-world results:\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e8X1 size\u003c\/strong\u003e with a \u003cstrong\u003e1\/4\" slotted hex washer head\u003c\/strong\u003e — designed for compatibility with standard drivers and precise, flush seating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZinc-plated finish\u003c\/strong\u003e provides durable corrosion resistance for both indoor and outdoor applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3500-count quantity\u003c\/strong\u003e helps you stay on task longer without frequent reorders.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-thread piercing action\u003c\/strong\u003e accelerates installation and enhances the ability to fasten heavier gauges of sheet metal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-piercing design\u003c\/strong\u003e eliminates the need for pre-drilling in many applications, saving time and reducing labor.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy this matters in the field: The Zip-In screw is engineered to deliver higher driving speed and a stronger hold in thicker sheet metal than typical self-piercing screws. The combination of a sharp point, efficient threading, and a robust washer head means fewer drive attempts, cleaner holes, and a secure, flush finish that stands up to vibration and outdoor exposure.\u003c\/p\u003e \u003cp\u003eIdeal applications include metal roofing and flashing, siding assemblies, HVAC duct connections, electrical enclosures, trailer fabrication, and automotive trim work — anywhere you need a dependable fastener that bites cleanly and holds tight under load.\u003c\/p\u003e \u003cp\u003ePractical tips for best results: align components accurately, apply steady pressure, and let the dual-thread action do the work. For very thick or highly lubricated metals, consider a light pilot guide to ensure the starting point remains true and the screw maintains straight entry for a flawless finish.\u003c\/p\u003e \u003cp\u003eProduct code: HW8X1ZP — Malco Zip-In 8X1 Self-Piercing Screws, zinc-plated, 3500-count, designed for fast, capable sheet-metal fastening with a 1\/4\" slotted hex washer head.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Malco","offers":[{"title":"Bulk \/ 1 In. \/ #8","offer_id":42658647572528,"sku":"574-HW8X1ZP","price":169.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/3883\/0640\/files\/90bb5302-4d8c-4b95-a3c4-359eb933befb.png?v=1766159483","url":"https:\/\/usatooldepot.com\/products\/malco-8x1-zip-in-self-piercing-screws-1-4-slotted-hex-washer-head-sheet-metal-screws-fast-easy-piercing-zinc-plated-3500-count","provider":"USA Tool Depot","version":"1.0","type":"link"}