{"product_id":"simpson-strong-tie-strong-drive-sds-heavy-duty-connector-screw-1-4-in-x-4-1-2-in-db-coating-100-pack-sds25412mb","title":"Simpson Strong-Tie Strong-Drive SDS Heavy-Duty Connector Screw, 1\/4-in. x 4-1\/2-in. DB Coating, 100-Pack (SDS25412MB)","description":"\u003csection data-aplus\u003e\n\u003cdetails id=\"product-features\" class=\"acc\" open\u003e\n  \u003csummary\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"features\"\u003e\n      \u003cdiv class=\"card\"\u003e\n        \u003cdiv class=\"card-inside\"\u003e\n          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/tool-free-change.svg\" alt=\"tool-free-change\" class=\"aplusicon\"\u003e\n        \u003c\/div\u003e\n        \u003cdiv\u003e\u003cstrong\u003eNo Predrilling Needed\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003eThe Type-17 point starts fast and drives cleanly into wood, so you can move quicker through connector installs without stopping to predrill.\u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"card\"\u003e\n        \u003cdiv class=\"card-inside\"\u003e\n          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/material.svg\" alt=\"material\" class=\"aplusicon\"\u003e\n        \u003c\/div\u003e\n        \u003cdiv\u003e\u003cstrong\u003eBuilt for Outdoor Exposure\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003eDouble-barrier coating adds corrosion resistance for exterior wood applications, which matters when the fastener is expected to stay put for the long haul.\u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"card\"\u003e\n        \u003cdiv class=\"card-inside\"\u003e\n          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/drive-size.svg\" alt=\"drive-size\" class=\"aplusicon\"\u003e\n        \u003c\/div\u003e\n        \u003cdiv\u003e\u003cstrong\u003eHeavy-Duty Connector Screw Grip\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003eA 3\/8 inch hex head with integrated washer and serrated threads helps the Simpson Strong-Tie SDS25412MB Strong-Drive SDS Heavy-Duty Connector Screw pull down tight and hold strong in connector and wood-to-wood work.\u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-overview\" class=\"acc\" open\u003e\n  \u003csummary\u003e\u003ch2\u003eOverview\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\" data-product-summary\u003e\n    \u003cp\u003eThe \u003cstrong\u003eSimpson Strong-Tie SDS25412MB Strong-Drive SDS Heavy-Duty Connector Screw\u003c\/strong\u003e is a 1\/4 inch class structural wood screw built for heavy-duty connector installation and wood fastening where you want speed, holding power, and less hassle during install. This is a \u003cstrong\u003eheavy-duty connector screw\u003c\/strong\u003e designed for \u003cstrong\u003estructural wood fastening and connector installation\u003c\/strong\u003e. Model Number: \u003cstrong\u003eSDS25412MB\u003c\/strong\u003e. This pack includes 100 screws sized 4-1\/2 inches long with a double-barrier coating for exterior-use durability.\u003c\/p\u003e\n    \u003cp\u003eWhat makes this screw matter on the job is how it cuts out extra steps. The Type-17 point is made for easy starts with no predrilling in typical wood applications, which helps reduce install time and minimizes splitting. When you are working through connector brackets, ledger attachments, or general heavy wood fastening, that means less bit walking, less setup, and fewer interruptions.\u003c\/p\u003e\n    \u003cp\u003eThe drive and head design are just as important as the point. This screw uses a 3\/8 inch hex drive and a hex head with an integrated 0.500 inch washer. In plain terms, that gives you a positive drive engagement and more bearing surface under the head, so the fastener seats firmly against the connector or wood surface. That is the kind of detail that matters when you are tightening hardware that cannot afford to feel loose or undersized.\u003c\/p\u003e\n    \u003cp\u003eThe thread design is set up for grip, not just entry. Serrated threads and a 10 TPI thread pattern help the screw bite into wood and pull material together. On this specific model, the thread length is 2-3\/4 inches, which gives you solid engagement while keeping part of the shank smooth for clamp-down performance in many wood-to-wood and connector applications.\u003c\/p\u003e\n    \u003cp\u003eFor outdoor fastening and exposed work, the double-barrier coating is a big part of the story. Simpson positions this line for exterior wood screw use and connector applications, and the coating is there for added corrosion resistance over time. If you are installing structural connectors, deck-related hardware, or other outdoor framing components, that coating is one of the reasons to choose this fastener over a generic wood screw.\u003c\/p\u003e\n    \u003cp\u003eThe Simpson Strong-Tie SDS25412MB Strong-Drive SDS Heavy-Duty Connector Screw is also designed to be easy to identify after installation. The head is stamped with the Simpson Strong-Tie mark and fastener length, which helps when you need to verify what was used after the job is done. That is a small feature, but on inspection-driven work or repeat installs, it saves guessing.\u003c\/p\u003e\n    \u003cp\u003eInstallation is straightforward. Simpson recommends using a low-speed 1\/2 inch drill with a 3\/8 inch hex driver. That matches what most pros already know about driving larger structural screws: steady torque and control matter more than just raw speed. This is not a finish screw. It is a structural fastener made to seat hard and hold.\u003c\/p\u003e\n    \u003cp\u003eWho is this for? Carpenters, deck builders, remodelers, and serious DIY users working with Simpson Strong-Tie connectors or other heavy wood connections. If you need a structural wood screw for fastening connectors, ledger-style work, or thick wood members and you want a 100-count pack of 4-1\/2 inch screws that installs faster than a lag-and-predrill routine, this is the right kind of fastener.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-benefits-1\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003eFaster Structural Wood Fastening\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"row\"\u003e\n      \u003cdiv class=\"img\"\u003e\n        \u003cimg src=\"https:\/\/ssttoolbox.widen.net\/content\/hzlr7w8cxn\/jpeg\/F_SDS_InstPho_Pho_Inst_SDS-HeavyDutyConnectorScrew-Deck-wDrill_C0.jpeg?position=c\u0026amp;color=ffffffff\u0026amp;u=cjmyin\" alt=\"Simpson Strong-Tie SDS25412MB Strong-Drive SDS Heavy-Duty Connector Screw being driven into deck framing with a drill during exterior wood fastening\" class=\"tnblock-img\"\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"copy\"\u003e\n        \u003cp\u003eThis screw is built to keep installs moving. The point starts quickly, the hex drive stays engaged, and the fastener is meant to go in without the predrill step that slows down structural fastening.\u003c\/p\u003e\n        \u003cul\u003e\n          \u003cli\u003eType-17 point for easy starts in wood\u003c\/li\u003e\n          \u003cli\u003eRecommended installation with a low-speed 1\/2 inch drill and 3\/8 inch hex driver\u003c\/li\u003e\n        \u003c\/ul\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-benefits-2\" class=\"acc flip\"\u003e\n  \u003csummary\u003e\u003ch2\u003eMade for Connector Work\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"row\"\u003e\n      \u003cdiv class=\"img\"\u003e\n        \u003cimg src=\"https:\/\/ssttoolbox.widen.net\/content\/3nemrgjlhb\/jpeg\/C_CJTZ-SDS_InstPho_Pho_Inst_ConcealedJoistTie-HeavyDutyConnectorScrew_C0.jpeg?position=c\u0026amp;color=ffffffff\u0026amp;u=cjmyin\" alt=\"Simpson Strong-Tie SDS25412MB Strong-Drive SDS Heavy-Duty Connector Screw installed in a concealed joist tie on dimensional lumber for connector fastening\" class=\"tnblock-img\"\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"copy\"\u003e\n        \u003cp\u003eThis is not just a long wood screw. It is designed specifically for heavy-duty Simpson Strong-Tie connectors, where clamp force, head bearing, and consistent installation all matter.\u003c\/p\u003e\n        \u003cul\u003e\n          \u003cli\u003eHex head with integrated 0.500 inch washer helps seat securely against hardware\u003c\/li\u003e\n          \u003cli\u003eIdeal for heavy-duty connector installations and wood-to-wood applications\u003c\/li\u003e\n        \u003c\/ul\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-benefits-3\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003eCorrosion Resistance for Outdoor Jobs\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"row\"\u003e\n      \u003cdiv class=\"img\"\u003e\n        \u003cimg src=\"https:\/\/ssttoolbox.widen.net\/content\/xu7colmagv\/jpeg\/F_SDS-HDG_InstPho_Pho_Instld_SDS-HeavyDutyConnectorScrew-HoseReel_C0.jpeg?position=c\u0026amp;color=ffffffff\u0026amp;u=cjmyin\" alt=\"Simpson Strong-Tie SDS25412MB Strong-Drive SDS Heavy-Duty Connector Screw securing exterior hardware to a wood wall in an outdoor setting\" class=\"tnblock-img\"\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"copy\"\u003e\n        \u003cp\u003eExterior fasteners need more than holding power. They also need to stand up to exposure. The double-barrier coating gives this structural screw the corrosion resistance needed for outdoor wood projects where hardware stays exposed to the elements.\u003c\/p\u003e\n        \u003cul\u003e\n          \u003cli\u003eDouble-barrier coating for added corrosion resistance\u003c\/li\u003e\n          \u003cli\u003eGood fit for deck hardware, exterior framing, and exposed connector fastening\u003c\/li\u003e\n        \u003c\/ul\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-whats-included\" class=\"acc\" open\u003e\n  \u003csummary\u003e\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"tnincluded-wrapper\"\u003e\n      \u003cul\u003e\n        \u003cli\u003e(100) Simpson Strong-Tie SDS25412MB Heavy-Duty Connector Screws, 1\/4 in. x 4-1\/2 in.\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-key-specifications\" class=\"acc\" open\u003e\n  \u003csummary\u003e\u003ch2\u003eKey Specifications\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003ctable class=\"aplusspecs\"\u003e\n      \u003ctr\u003e\n        \u003cth\u003eLength\u003c\/th\u003e\n        \u003ctd\u003e4-1\/2 in.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eShank Diameter\u003c\/th\u003e\n        \u003ctd\u003e0.235 in.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eDrive Type\u003c\/th\u003e\n        \u003ctd\u003e3\/8 in. Hex\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eHead Type\u003c\/th\u003e\n        \u003ctd\u003eHex Head with Integrated 0.500 in. Washer\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eThread Type\u003c\/th\u003e\n        \u003ctd\u003eSerrated Threads\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eThread Length\u003c\/th\u003e\n        \u003ctd\u003e2-3\/4 in.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003ePoint Type\u003c\/th\u003e\n        \u003ctd\u003eType-17 Point\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003ePackaging Quantity\u003c\/th\u003e\n        \u003ctd\u003e100\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eCoating\u003c\/th\u003e\n        \u003ctd\u003eDouble-Barrier Coating\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eWeight\u003c\/th\u003e\n        \u003ctd\u003e5.4 lbs\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-compatibility\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003eCompatibility\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"compat-list\"\u003e\n      \u003cdiv class=\"compat-row\"\u003e\n        \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/drive-size.svg\" alt=\"drive-size\" class=\"icon-sm\"\u003e\n        \u003cdiv\u003e\n          \u003cstrong\u003eDriver Interface\u003c\/strong\u003e\n          \u003cdiv class=\"compat-detail\"\u003eUses a 3\/8 inch hex drive. Simpson recommends a 3\/8 inch hex driver for installation.\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"compat-row\"\u003e\n        \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/accessories-included.svg\" alt=\"accessories-included\" class=\"icon-sm\"\u003e\n        \u003cdiv\u003e\n          \u003cstrong\u003eReplacement Driver Bit\u003c\/strong\u003e\n          \u003cdiv class=\"compat-detail\"\u003eCompatible with replacement driver bit BITHEXR38-R1.\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"compat-row\"\u003e\n        \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/material.svg\" alt=\"material\" class=\"icon-sm\"\u003e\n        \u003cdiv\u003e\n          \u003cstrong\u003eApplication Fit\u003c\/strong\u003e\n          \u003cdiv class=\"compat-detail\"\u003eDesigned for heavy-duty Simpson Strong-Tie connectors and structural wood fastening applications.\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-applications-uses\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003eBuilt For\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"tags\"\u003e\n      \u003cspan class=\"tag\"\u003eDeck Building\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eCarpentry\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eConstruction\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eRemodeling\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eExterior Wood Fastening\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eConnector Installation\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eWood-to-Wood Structural Fastening\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eDIY \/ Hobbyist\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-pro-tips\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003ePro Tip\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"tip-row\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/specs.svg\" alt=\"specs\" class=\"icon-lg\"\u003e\n      \u003cp class=\"tip-text\"\u003eRun these with a low-speed drill instead of a high-speed impact when you want the screw to seat clean and tight against a connector. You will get better control at the head and reduce the chance of overdriving the washer into the hardware.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-tool-nut-take\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003eTool Nut's Take\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"eyebrow\"\u003eTool Nut's Take\u003c\/div\u003e\n    \u003ch3\u003eSimpson Strong-Tie SDS25412MB Strong-Drive SDS Heavy-Duty Connector Screw is the fast structural screw you buy when lag bolts feel like extra work\u003c\/h3\u003e\n    \u003cp\u003eThis is a proven heavy-duty connector screw that saves time on structural wood fastening without feeling like a shortcut.\u003c\/p\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWho it's for:\u003c\/strong\u003e Deck builders, framers, remodelers, and serious DIY users installing structural connectors or making heavy wood-to-wood connections outdoors.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWhy it stands out:\u003c\/strong\u003e The Type-17 point, 3\/8 inch hex head, integrated washer, and double-barrier coating give you the mix of fast install, solid clamp force, and outdoor durability you actually want on site.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWorth knowing:\u003c\/strong\u003e This pack is just the screws. Bring the right 3\/8 inch hex driver, and use a steady low-speed drill if you want the cleanest seating in connector hardware.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-faqs\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003eCommon Questions\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eDoes this screw require predrilling?\u003c\/strong\u003e No. The Type-17 point is designed for easy driving in wood without predrilling in typical applications.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWhat kind of drive does it use?\u003c\/strong\u003e It uses a 3\/8 inch hex drive and hex head format.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eIs this meant for exterior use?\u003c\/strong\u003e Yes. This model uses a double-barrier coating for corrosion resistance in exterior wood applications.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWhat is the size of this screw?\u003c\/strong\u003e This SDS25412MB screw is 4-1\/2 inches long with a 0.235 inch shank diameter and 2-3\/4 inch thread length.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/section\u003e","brand":"Simpson Strong-Tie","offers":[{"title":"Default Title","offer_id":52999306936614,"sku":"SDS25412MB","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/SDS25412MB_00707392143604_Product_Photo_01_ba6a55c7-75d9-43d3-a85d-d77ec50492d5.jpg?v=1779135461","url":"https:\/\/www.toolnut.com\/products\/simpson-strong-tie-strong-drive-sds-heavy-duty-connector-screw-1-4-in-x-4-1-2-in-db-coating-100-pack-sds25412mb","provider":"Tool Nut","version":"1.0","type":"link"}