{"product_id":"malco-8x1-1-2-white-zip-in-self-piercing-screws-1-4-slotted-hex-washer-head-sheet-metal-screws-fast-easy-piercing-zinc-plated-250-count","title":"Malco 8X1-1\/2 White Zip-In Self-Piercing Screws | 1\/4\" Slotted Hex Washer Head Sheet Metal Screws  | Fast \u0026 Easy Piercing | Zinc Plated (250 Count)","description":"\u003cdiv\u003eMalco Zip-In 8x1-1\/2 White Self-Piercing Screws are engineered to transform sheet-metal installations from slow and fiddly to clean, fast, and repeatable. With a white zinc-plated finish and a 1\/4\" slotted hex washer head, these screws deliver dependable performance in metalwork projects ranging from HVAC duct runs to flashing and enclosures. Each 250-count package is ready to tackle thicker gauges with a design that delivers penetrating power when you need it most. What makes Zip-In different\n- Two-stage thread geometry for instant bite and rapid driving: a single starting thread runs all the way to the tip to initiate penetration, then a second thread above the point engages after entry to drive the fastener twice as quickly. That means faster starts and tighter joints with fewer passes.\n- Precision heat-treated point for strength at the tip: a sophisticated heat-treat process tapers to a fine, sharp point without sacrificing point strength, so you pierce cleanly through metal and stay locked in.\n- Superior fastening power on heavier sheet-metal gauges: Zip-In screws are designed to hold firmer, stronger joints than typical self-piercing screws, reducing the need for retightening or rework.\n- Reliable, durable finish and seating: the white zinc-plated coating guards against corrosion in a variety of installations, while the hex washer head provides a clean, even seat that helps seal against the workpiece. How it works in practice\n- Quick-start penetration: align the screw, apply steady drive force, and watch the initial thread pull into place without pre-drilling. The tip begins cutting through metal immediately, saving you time on every screw.\n- Fast downstream consolidation: after the point has entered, the second thread engages to pull the panel tight and secure a robust connection with minimal effort.\n- Consistent performance on thicker sheets: the design is optimized for heavier gauges, letting you complete assemblies that might require other self-piercing screws to struggle or fail. Ideal applications\n- HVAC ductwork and metal flashing where rapid, repeatable fastening is critical.\n- Electrical enclosures, control panels, and metal housings that demand a tight, sealable joint.\n- Roofing, gutters, and fascia where a clean finish and dependable hold matter over long service life.\n- General fabrications and fabricating projects involving thicker sheet metal that benefit from a fast, clean piercing action. Why choose Malco Zip-In for your project\n- Speed without compromise: a unique threading and heat-treatment combination delivers faster driving and stronger holds, helping you meet tight timelines without sacrificing reliability.\n- Proven performance in real-world metalwork: the 8x1-1\/2 length is ideal for typical sheet-metal assemblies, providing enough bite to anchor securely while staying flush to the surface.\n- Practical, field-ready design: the 1\/4\" slotted hex washer head fits common drivers, and the durable zinc finish stands up to workshop and site conditions. Technical snapshot\n- Size: 8x1-1\/2 inches\n- Drive: slotted with 1\/4\" hex washer head\n- Finish: white zinc-plated\n- Count: 250 screws\n- Material: steel for dependable sheet-metal fastening Who this is for\n- Professional fabricators and installers who value speed, precision, and strong, lasting joints.\n- DIY enthusiasts tackling metal roofing, flashing, ductwork, or enclosure assembly who want pro-grade results with fewer passes and less effort. In short, Malco Zip-In self-piercing screws redefine how quickly and securely you can fasten sheet metal. The two-thread design, heat-treated tip, and zinc-coated finish combine to deliver cleaner penetrations, stronger holds, and less rework—so your metal projects go from plan to finished with confidence.\u003c\/div\u003e","brand":"Malco","offers":[{"title":"Bulk \/ 1-1\/2 In. \/ #8","offer_id":42658647015472,"sku":"574-HW8X11\/2ZWT","price":31.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/3883\/0640\/files\/6eac02c7-953f-4a4b-b2fa-8b6debcdbc49.jpg?v=1766159482","url":"https:\/\/usatooldepot.com\/products\/malco-8x1-1-2-white-zip-in-self-piercing-screws-1-4-slotted-hex-washer-head-sheet-metal-screws-fast-easy-piercing-zinc-plated-250-count","provider":"USA Tool Depot","version":"1.0","type":"link"}