{"product_id":"malco-zip-in-self-piercing-screws-5-16-slotted-hex-washer-head-sheet-metal-screws-type-a-single-thread-zinc-plated-3500-10-x-1-1-2","title":"Malco Zip-In Self-Piercing Screws | 5\/16\" Slotted Hex Washer Head Sheet Metal Screws  | Type A Single Thread | Zinc Plated (3500, #10 x 1-1\/2\")","description":"\u003cdiv\u003e\n\u003cp\u003eMalco Zip-In Self-Piercing Screws deliver fast, reliable fastening for thin metal and flashing projects. Designed as drill-in screws, they pierce straight into sheet metal with no pre-drilling required, helping you complete installations faster and with less effort.\u003c\/p\u003e \u003cp\u003eKey features that set these screws apart:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSize and head\u003c\/strong\u003e: 5\/16\" slotted hex washer head, perfect for secure seating and a clean finish on metal surfaces.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThread design\u003c\/strong\u003e: Type A single thread for quick penetration and reduced binding in thin-gared metal applications.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Zinc-plated for corrosion resistance in outdoor, damp, or humid environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSize availability\u003c\/strong\u003e: Typically supplied as #10 x 1-1\/2\" in this line, with options for longer lengths to accommodate thicker assemblies.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eQuantity flexibility\u003c\/strong\u003e: Available in multiple piece quantities to suit both small repairs and large-scale projects.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy choose Malco Zip-In over traditional fasteners? The self-piercing, drill-in design saves time on every installation by eliminating pre-drilling, while the single-thread geometry speeds up driving in thin metal without sacrificing grip. The zinc finish provides enduring corrosion resistance, making these screws suitable for exterior applications such as metal roofing, flashing, gutters, and HVAC ductwork, as well as interior metal panel installations.\u003c\/p\u003e \u003cp\u003ePractical tips for best results:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eAlign the fastener with the sheet edge and apply steady, even pressure for clean penetration.\u003c\/li\u003e \u003cli\u003eAvoid over-tightening to prevent distortion or tearing of thin metal. Use a drill-driver with appropriate torque settings for consistent results.\u003c\/li\u003e \u003cli\u003eIf you’re working outdoors or in exposed conditions, rely on the zinc plating for corrosion resistance and consider sealing joints as needed to maximize longevity.\u003c\/li\u003e \u003cli\u003eChoose the length to match your material thickness; longer lengths are available for thicker assemblies when more hold is required.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhether you’re a professional contractor tackling metal roofing or flashing projects, or a DIYer upgrading gutters and trim, Malco HW10X1 1\/2\" drill-in screws with a 5\/16\" slotted hex washer head give you a reliable, efficient fastening solution that moves your project forward quickly and with confidence.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Malco","offers":[{"title":"Bulk \/ 11\/2 In. \/ #10","offer_id":42658645409840,"sku":"574-HW10X11\/2","price":329.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/3883\/0640\/files\/051e8412-3859-4463-b0ac-135c6a365037.png?v=1766159472","url":"https:\/\/usatooldepot.com\/products\/malco-zip-in-self-piercing-screws-5-16-slotted-hex-washer-head-sheet-metal-screws-type-a-single-thread-zinc-plated-3500-10-x-1-1-2","provider":"USA Tool Depot","version":"1.0","type":"link"}