{"product_id":"do-it-729992-exterior-deck-screw-3-1-2-in-coarse-thread-1-lb","title":"Do It 729992 Exterior Deck Screw 3-1\/2 in Coarse Thread 1 Lb","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe DO IT 729992 is a 3-1\/2 inch exterior-grade combo drive screw engineered for demanding outdoor fastening applications. Built on a galvanized base with a PrimeGuard Plus coating, these screws deliver high corrosion resistance and a long service life in exposed conditions. The finish color is formulated to blend with treated lumber, making them a natural fit for deck and dock construction. The extra coarse thread pattern reduces wood splitting and friction during installation, while the Type 17 drill tip allows direct drive into wood without pre-drilling. Each box contains 1 pound of fasteners.\u003c\/p\u003e\u003cp\u003eThese screws are designed for exterior applications including decks, docks, fences, and gazebos. They are compliant for use with treated lumber, including ACQ and CA-treated wood products. The coarse thread geometry provides strong pull-through resistance in dimensional lumber and engineered wood substrates. Typically installed by carpenters, general contractors, and experienced DIYers working on outdoor structures where moisture exposure and wood movement are ongoing concerns.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eGalvanized base with PrimeGuard Plus coating for high corrosion resistance\u003c\/li\u003e\n\u003cli\u003eType 17 drill tip eliminates the need for pre-drilling\u003c\/li\u003e\n\u003cli\u003eExtra coarse thread reduces wood splitting and drive friction\u003c\/li\u003e\n\u003cli\u003eFlat countersinking head sits flush with the work surface\u003c\/li\u003e\n\u003cli\u003eFinish color blends with treated lumber\u003c\/li\u003e\n\u003cli\u003eCompliant for use with treated lumber including ACQ and CA treatments\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for all exterior wood construction applications including decks, docks, fences, and gazebos using treated or untreated dimensional lumber.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is typically performed by carpenters or general contractors using a standard drill-driver or impact driver set to an appropriate clutch setting to avoid overdriving. No pre-drilling is required thanks to the Type 17 drill tip, though pilot holes may be advisable near board ends to prevent splitting in dense or narrow stock. Always verify that fastener coating compliance meets local building code requirements when working with pressure-treated lumber.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 3-1\/2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrive Type\u003c\/strong\u003e: Combo (combination)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: Extra coarse\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Style\u003c\/strong\u003e: Flat countersinking\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTip Type\u003c\/strong\u003e: Type 17 drill tip\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Galvanized base with PrimeGuard Plus finish\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Exterior, treated lumber compliant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Weight\u003c\/strong\u003e: 1.025 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1 lb box\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: DO IT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 729992\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DO IT BEST","offers":[{"title":"Default Title","offer_id":51701009842482,"sku":"729992","price":18.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b6d29c928103e6c1db0cd3db0fd3eef8_973fdd35-598f-48df-9f5c-a33d2313fe27.jpg?v=1788396690","url":"https:\/\/voomisupply.com\/products\/do-it-729992-exterior-deck-screw-3-1-2-in-coarse-thread-1-lb","provider":"Voomi Supply","version":"1.0","type":"link"}