{"product_id":"simpson-strong-tie-strong-drive-sdws-timber-screw-0-275-in-x-8-in-t50-type-316-200-pack-sdws27800ss","title":"Simpson Strong-Tie Strong-Drive SDWS Timber Screw, 0.275-in. x 8-in. T50, Type 316, 200-Pack (SDWS27800SS)","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\/material.svg\" alt=\"material\" class=\"aplusicon\"\u003e\n        \u003c\/div\u003e\n        \u003cdiv\u003e\u003cstrong\u003eBuilt for Salt Air\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003eType 316 stainless steel gives this screw the corrosion resistance needed for coastal and marine wood connections where standard structural fasteners can be the weak link.\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\u003eFast Structural Install\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003eThe SawTooth point starts quickly and usually eliminates predrilling and counterboring, so you move faster on heavy wood-to-wood fastening jobs.\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\/specs.svg\" alt=\"specs\" class=\"aplusicon\"\u003e\n        \u003c\/div\u003e\n        \u003cdiv\u003e\u003cstrong\u003eHeavy-Duty Timber Screw\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003eWith a 0.275 inch shank and large washer head, the Simpson Strong-Tie SDWS27800SS timber screw is made for serious structural wood connections, not light trim 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\"\u003e\n  \u003csummary\u003e\u003ch2\u003eOverview\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\" data-product-summary\u003e\n    \u003cp\u003eThe Simpson Strong-Tie SDWS27800SS Strong-Drive SDWS Timber Screw is a structural wood screw for heavy-duty wood-to-wood fastening in harsh outdoor environments. This is a timber screw designed for structural wood-to-wood connections in coastal, marine, and other severe corrosion applications. Model Number: SDWS27800SS. If you are building or repairing piers, boardwalks, wharves, ledgers, or other exposed timber assemblies, this screw is made for that kind of work.\u003c\/p\u003e\n    \u003cp\u003eWhat matters most here is the combination of installation speed and structural intent. The 0.275 inch shank diameter puts this fastener in the heavy-duty category, giving it the strength expected for timber connections where spikes, lag bolts, or lag screws are commonly used. Simpson positions it as an easier-to-install alternative to through-bolting and traditional lag screws, which matters when you are driving a lot of fasteners into dense framing or large treated members and want to avoid extra setup time.\u003c\/p\u003e\n    \u003cp\u003eThe SawTooth point is there for a reason. It helps the screw start fast and reduces the need for predrilling in most applications, which saves time on site and cuts down on bit changes. The mid-shaft knurl also helps reduce driving torque, so the screw drives more efficiently into wood. On jobs where you are fastening ledger material, heavy planks, or structural members one after another, that translates into quicker installation and less fighting the fastener.\u003c\/p\u003e\n    \u003cp\u003eThe head and drive design are equally practical. The large 0.650 inch washer head provides a broad bearing surface, which helps clamp material effectively and seat flush to the surface. Nibs under the head help reduce splintering as the head pulls down. The deep T50 6-lobe recess is built for a more secure drive with fewer cam-outs than shallow recess designs. On structural screws this size, drive engagement matters because stripped heads waste time and make removal a headache.\u003c\/p\u003e\n    \u003cp\u003eMaterial selection is a major reason to buy this version. SDWS27800SS is made from Type 316 stainless steel, which is the right call when the connection will see salt air, coastal moisture, or generally aggressive corrosion exposure. That makes it a much better fit for boardwalks, piers, and oceanfront rail or deck work than standard coated carbon steel fasteners. If the environment is what usually kills the hardware first, this screw addresses that problem directly.\u003c\/p\u003e\n    \u003cp\u003eThis specific version is 8 inches long with a 3 inch thread length and 5 threads per inch, giving you the length needed for thicker member tie-ins and larger timber work. It is a hand-drive screw with a washer head and SawTooth point, intended for fastening wood to wood and engineered wood to wood where strong hold and code-recognized performance matter. Simpson also notes that the SDWS Timber SS screw is code listed under IAPMO UES ER-192 and meets 2018 and 2021 IRC and IBC code requirements for several common wood framing and engineered-wood applications.\u003c\/p\u003e\n    \u003cp\u003eThe pack quantity here is 200 screws, so this is not a small grab-and-go blister pack. It is aimed at builders, deck crews, marine contractors, repair crews, and serious property owners doing substantial timber work. If you need a coastal-rated structural screw that installs faster than a lag and is meant to replace more cumbersome fastening methods in many applications, this is the version to look at.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-benefits\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003eMade for Marine and Coastal 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\/tzpwrx4bih\/jpeg\/F_SDWS27xxxSS_InstPho_Pho_Inst_TIMBER-StanlessSteelScrew-PismoPierConstruction-1_C0.jpeg?position=c\u0026amp;color=ffffffff\u0026amp;u=cjmyin\" alt=\"Simpson Strong-Tie SDWS27800SS Strong-Drive SDWS Timber Screw used in coastal pier construction on exposed timber decking at a beach jobsite\" class=\"tnblock-img\"\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"copy\"\u003e\n        \u003cp\u003eThis is where this screw earns its keep. The Type 316 stainless steel build is meant for structures exposed to salt air and moisture where ordinary fasteners can corrode long before the lumber is done.\u003c\/p\u003e\n        \u003cul\u003e\n          \u003cli\u003eDesigned for coastal or severe corrosion environments\u003c\/li\u003e\n          \u003cli\u003eTypical uses include piers, boardwalks, wharves, and ledgers\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\u003eDrive Big Screws Without the Usual Hassle\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\/gadjlkceac\/jpeg\/F_SDWS27xxxSS_InstPho_Pho_Inst_TIMBER-StanlessSteelScrew-ocean-TopRailApp_C0.jpeg?position=c\u0026amp;color=ffffffff\u0026amp;u=cjmyin\" alt=\"Simpson Strong-Tie SDWS27800SS Strong-Drive SDWS Timber Screw being driven into an exterior wood rail assembly near the ocean with a drill driver\" class=\"tnblock-img\"\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"copy\"\u003e\n        \u003cp\u003eLarge structural screws only save time if they go in cleanly. The SawTooth point, mid-shaft knurl, and deep 6-lobe recess are all there to help reduce effort during install and keep the bit engaged.\u003c\/p\u003e\n        \u003cul\u003e\n          \u003cli\u003eSawTooth point helps start quickly and usually avoids predrilling\u003c\/li\u003e\n          \u003cli\u003eDeep T50 6-lobe recess helps limit cam-out under load\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\u003eHead Design That Pulls Tight and Finishes Clean\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\/bhd79kmqcu\/jpeg\/F_SDWS27SS_InstPho_Pho_Instld_SDWS-Timber-SS-Screw-Pier-Installed_C0.jpeg?position=c\u0026amp;color=ffffffff\u0026amp;u=cjmyin\" alt=\"Installed Simpson Strong-Tie SDWS27800SS Strong-Drive SDWS Timber Screw heads seated flush in weathered pier decking boards\" class=\"tnblock-img\"\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"copy\"\u003e\n        \u003cp\u003eThe large washer head gives you solid bearing on the wood surface, and the nibs help the head seat flush with less surface tear-out. That matters when you want clamping force without chewing up the face of the board.\u003c\/p\u003e\n        \u003cul\u003e\n          \u003cli\u003e0.650 inch head diameter increases load-bearing area\u003c\/li\u003e\n          \u003cli\u003eWasher head with nibs helps reduce splintering as it seats\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-4\" class=\"acc flip\"\u003e\n  \u003csummary\u003e\u003ch2\u003eSee the Screw Geometry Up Close\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\/uspkpi41eg\/jpeg\/F_SDWS27600SS_ProdPho_Pho_Prod_SDWS-Timber-SS-Screw-Profile_C0.jpeg?position=c\u0026amp;color=ffffffff\u0026amp;u=cjmyin\" alt=\"Simpson Strong-Tie SDWS27800SS Strong-Drive SDWS Timber Screw profile showing washer head shank threads and SawTooth point on a clean background\" class=\"tnblock-img\"\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"copy\"\u003e\n        \u003cp\u003eThis profile shot shows why the screw installs the way it does. You can clearly see the large head, heavy shank, thread section, knurled area, and aggressive point that make it a true timber fastener.\u003c\/p\u003e\n        \u003cul\u003e\n          \u003cli\u003e0.275 inch shank diameter for heavy-duty structural fastening\u003c\/li\u003e\n          \u003cli\u003e8 inch overall length with 3 inch thread length\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(200) Simpson Strong-Tie SDWS27800SS 0.275 in. x 8 in. Strong-Drive SDWS Timber SS Screws\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\u003eMaterial\u003c\/th\u003e\n        \u003ctd\u003eType 316 Stainless Steel\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eLength\u003c\/th\u003e\n        \u003ctd\u003e8 in.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eShank Diameter\u003c\/th\u003e\n        \u003ctd\u003e0.275 in.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eHead Diameter\u003c\/th\u003e\n        \u003ctd\u003e0.650 in.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eDrive Type\u003c\/th\u003e\n        \u003ctd\u003eT50 6-Lobe\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eHead Type\u003c\/th\u003e\n        \u003ctd\u003eWasher Head\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eThread Length\u003c\/th\u003e\n        \u003ctd\u003e3 in.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003ePoint Type\u003c\/th\u003e\n        \u003ctd\u003eSawTooth Point\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eThreads Per Inch\u003c\/th\u003e\n        \u003ctd\u003e5\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003ePack Quantity\u003c\/th\u003e\n        \u003ctd\u003e200\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\u003eDrive Interface\u003c\/strong\u003e\n          \u003cdiv class=\"compat-detail\"\u003eUses a T50 6-lobe drive. Simpson lists replacement driver bit BIT50T-2-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 wood-to-wood and engineered-wood structural connections.\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\"\u003eMarine Construction\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eDeck Building\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eGeneral Contracting\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eExterior Structural Woodwork\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eBoardwalk Repairs\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003ePier and Wharf Work\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eLedger Fastening\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eSevere Corrosion Environments\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\"\u003eOn ledger or heavy timber work near board ends, pay attention to edge and end distances. Simpson notes that for screws placed between 2 and 4 inches from the end, predrilling with a 3\/16 inch drill bit is required.\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 SDWS27800SS Strong-Drive SDWS Timber Screw for real exterior structural work\u003c\/h3\u003e\n    \u003cp\u003eIf you need a long structural screw that can handle coastal exposure without turning into a rust problem, this is the right kind of fastener.\u003c\/p\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWho it's for:\u003c\/strong\u003e Contractors and serious DIYers building or repairing piers, boardwalks, ledgers, rails, and other heavy exterior wood connections.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWhy it stands out:\u003c\/strong\u003e Type 316 stainless steel, a true heavy-duty 0.275 inch shank, and a drive design that makes big screws faster to install than old-school lag hardware in many applications.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWorth knowing:\u003c\/strong\u003e This is a 200-pack of 8 inch timber screws, so it is meant for substantial projects. Make sure you have the correct T50 6-lobe bit on hand.\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\u003eWhat material is this screw made from?\u003c\/strong\u003e It is made from Type 316 stainless steel.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWhat is this screw designed to fasten?\u003c\/strong\u003e It is designed for structural wood-to-wood and engineered-wood connections.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eDoes this screw usually require predrilling?\u003c\/strong\u003e Simpson states that no predrilling or counterboring is required for most applications, thanks to the SawTooth point design.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWhat drive size does it use?\u003c\/strong\u003e It uses a deep T50 6-lobe recess.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWhere is this screw commonly used?\u003c\/strong\u003e Typical applications include piers, boardwalks, wharves, and ledgers in coastal or severe corrosion environments.\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":52999307788582,"sku":"SDWS27800SS","price":1281.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/SDWS27800SS_00707392003007_Feature_Closeup_Photo_01_693c30fc-c9f9-43e8-8a14-423cf4a9a486.jpg?v=1779135460","url":"https:\/\/www.toolnut.com\/products\/simpson-strong-tie-strong-drive-sdws-timber-screw-0-275-in-x-8-in-t50-type-316-200-pack-sdws27800ss","provider":"Tool Nut","version":"1.0","type":"link"}