{"product_id":"simpson-strong-tie-zmax-galvanized-post-base-for-4x-bc40z","title":"Simpson Strong-Tie ZMAX Galvanized Post Base for 4x (BC40Z)","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\u003eLight-Duty 4x Support\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003eThis Simpson Strong-Tie BC40Z post base is built to connect a nominal 4x post to a wood supporting member. It gives you a cleaner, stronger connection than toe-nailing into end grain.\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\u003eHelps Reduce Splitting\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003eThe opposing nail pattern spreads the fastening load in a smarter way. That matters when you want to secure the post without encouraging wood splitting during installation.\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\/compliance.svg\" alt=\"compliance\" class=\"aplusicon\"\u003e\n        \u003c\/div\u003e\n        \u003cdiv\u003e\u003cstrong\u003eZMAX Coating\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003eThe ZMAX finish adds extra corrosion resistance over standard galvanized versions. That makes it a better fit for exposed framing and deck work where hardware sees more moisture.\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 BC40Z Post Base is a light-duty post base for attaching a nominal 4x post to a wood supporting member. This is a post base designed for connecting deck posts and other top-supported wood posts while adding uplift and lateral resistance. Model Number BC40Z uses 18 gauge steel with a ZMAX coating for corrosion resistance in tougher jobsite conditions.\u003c\/p\u003e\n    \u003cp\u003eIn practical terms, this connector gives you a more reliable way to secure a post than angled nailing or driving screws into end grain alone. Simpson Strong-Tie designed the BC series for light-duty applications, and the BC40Z specifically fits nominal 4x posts with dimensions of 3-9\/16 inches wide, 3-1\/4 inches long, and 2-1\/4 inches high. The connection is intended to help keep the post located and tied into the framing below, which is especially useful in deck and patio cover work.\u003c\/p\u003e\n    \u003cp\u003eOne feature worth paying attention to is the opposing nail pattern. That layout helps reduce the chance of splitting the wood during fastening, which is a common problem when you are trying to lock a post in place near the end of the member. Simpson also states that the connector can achieve its full allowable load using either common nail sizes or pneumatic nail sizes, which gives you some flexibility depending on how your crew installs hardware.\u003c\/p\u003e\n    \u003cp\u003eThe 18 gauge construction keeps the part easy to handle and suitable for lighter structural connections. This is not the right connector for every post condition, and Simpson is clear about that. BC post bases do not provide adequate resistance to prevent members from rotating about the base, so they are not recommended for non-top-supported installations such as fences or unbraced carports. That limitation matters because it tells you exactly where this hardware belongs and where it does not.\u003c\/p\u003e\n    \u003cp\u003eFor compatibility, the BC40Z is sized for nominal 4x lumber and is installed with the specified fasteners. Source data calls out 0.162 x 3-1\/2 inch nails or 0.162 x 2-1\/2 inch nails, and Simpson load data also references Strong-Drive SD10112 fasteners for the BC40 platform. One more important note from the manufacturer: the pilot holes are for manufacturing purposes only and bolts should not be installed in them.\u003c\/p\u003e\n    \u003cp\u003eIf you are building decks, patio covers, modular structures, or other top-braced wood framing where a light-duty 4x post base makes sense, this connector is the straightforward choice. It is best for carpenters, deck builders, remodelers, and serious DIY users who want a purpose-built post connection instead of improvising one on site.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-benefits\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003eSecure a 4x Post Without Improvising\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:\/\/cdn.anglera.com\/assets\/74d6ed76-fe0d-4d23-a9db-1f8749ca9ef2\/10501349998886_a7b9cf7c0c5f.jpg\" alt=\"Simpson Strong-Tie BC40Z Post Base installed around a 4x wood post on deck framing in an outdoor wood construction setting\" class=\"tnblock-img\"\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"copy\"\u003e\n        \u003cp\u003eThis is the kind of hardware that solves a basic framing problem the right way. Instead of relying on angled nails into the post, the base captures the post at the bottom and ties it into the supporting wood member.\u003c\/p\u003e\n        \u003cul\u003e\n          \u003cli\u003eDesigned for nominal 4x posts\u003c\/li\u003e\n          \u003cli\u003eProvides uplift and lateral resistance in light-duty connections\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\u003eBuilt for Fast, Straightforward Installation\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:\/\/cdn.anglera.com\/assets\/74d6ed76-fe0d-4d23-a9db-1f8749ca9ef2\/10501349998886_520334c65579.jpg\" alt=\"Simpson Strong-Tie BC40Z Post Base product image showing the 18 gauge steel body, side flanges, and base holes for wood post fastening\" class=\"tnblock-img\"\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"copy\"\u003e\n        \u003cp\u003eThe layout is simple, but the details matter. The opposing nail pattern helps reduce splitting, and the light-gauge design keeps the connector easy to position during install.\u003c\/p\u003e\n        \u003cul\u003e\n          \u003cli\u003e18 gauge steel construction for light-duty use\u003c\/li\u003e\n          \u003cli\u003eAttains full allowable load with either common nail or pneumatic nail sizes\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\u003eKnow Where It Works Best\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:\/\/cdn.anglera.com\/assets\/74d6ed76-fe0d-4d23-a9db-1f8749ca9ef2\/10501349998886_92add52b836d.jpg\" alt=\"Simpson Strong-Tie BC40Z Post Base shown supporting a top-braced 4x wood post on wood framing for deck or patio construction\" class=\"tnblock-img\"\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"copy\"\u003e\n        \u003cp\u003eThe BC40Z is meant for top-supported assemblies, not free-standing posts that can twist at the base. Used in the right application, it is a clean and effective connector for decks and similar framing.\u003c\/p\u003e\n        \u003cul\u003e\n          \u003cli\u003eNot recommended for non-top-supported installations\u003c\/li\u003e\n          \u003cli\u003eUseful for deck posts, patio covers, and modular construction work\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-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\u003eNominal Post Size\u003c\/th\u003e\n        \u003ctd\u003e4x\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eMaterial Thickness\u003c\/th\u003e\n        \u003ctd\u003e18 gauge\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eFinish\u003c\/th\u003e\n        \u003ctd\u003eZMAX coating\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eWidth\u003c\/th\u003e\n        \u003ctd\u003e3-9\/16 in.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eLength\u003c\/th\u003e\n        \u003ctd\u003e3-1\/4 in.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eHeight\u003c\/th\u003e\n        \u003ctd\u003e2-1\/4 in.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eApplication\u003c\/th\u003e\n        \u003ctd\u003eFactory-built\/modular construction\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003ePackaging Quantity\u003c\/th\u003e\n        \u003ctd\u003e1\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\/size.svg\" alt=\"size\" class=\"aplusicon\"\u003e\n        \u003cdiv\u003e\n          \u003cstrong\u003ePost Size\u003c\/strong\u003e\n          \u003cdiv class=\"compat-detail\"\u003eFits nominal 4x wood posts.\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\/specs.svg\" alt=\"specs\" class=\"aplusicon\"\u003e\n        \u003cdiv\u003e\n          \u003cstrong\u003eFastener Options\u003c\/strong\u003e\n          \u003cdiv class=\"compat-detail\"\u003eInstall with specified fasteners, including 0.162 x 3-1\/2 inch nails or 0.162 x 2-1\/2 inch nails. Simpson load data for the BC40 platform also references SD10112 fasteners.\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\/compliance.svg\" alt=\"compliance\" class=\"aplusicon\"\u003e\n        \u003cdiv\u003e\n          \u003cstrong\u003eInstallation Note\u003c\/strong\u003e\n          \u003cdiv class=\"compat-detail\"\u003ePilot holes are for manufacturing purposes only. Do not install bolts in those holes.\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\"\u003ePatio Covers\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\"\u003eFactory-Built \/ Modular Construction\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=\"aplusicon\"\u003e\n      \u003cp class=\"tip-text\"\u003eIf you are looking at the larger holes and thinking about dropping bolts through them, don't. On the BC40Z those pilot holes are for manufacturing only, so stick with the specified connector fasteners to get the intended performance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-warranty\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003eWarranty \u0026amp; Support\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"warranty-row\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/warranty.svg\" alt=\"warranty\" class=\"icon-sm\"\u003e\n      \u003cdiv class=\"warranty-text\"\u003e\n        No manufacturer's warranty is listed for this product in the available source data.\n      \u003c\/div\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 BC40Z Post Base Keeps a Simple Connection Honest\u003c\/h3\u003e\n    \u003cp\u003eIf you need a light-duty way to anchor a 4x post to wood framing, this is the right kind of hardware to use instead of making up your own fastening pattern.\u003c\/p\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWho it's for:\u003c\/strong\u003e Deck builders, carpenters, remodelers, and DIY users working on top-supported 4x post connections.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWhy it stands out:\u003c\/strong\u003e The opposing nail pattern, rated load path, and ZMAX coating make it more useful than a generic bracket or improvised nailing.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWorth knowing:\u003c\/strong\u003e This is a light-duty connector and it is not the pick for posts that can rotate freely at the base, like fence posts or unbraced carports.\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 size post does this fit?\u003c\/strong\u003e The BC40Z is sized for a nominal 4x wood post.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWhat is the base made from?\u003c\/strong\u003e It is made from 18 gauge steel.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eIs this okay for fences or other non-top-supported posts?\u003c\/strong\u003e No. Simpson states that BC post bases are not recommended for non-top-supported installations because they do not provide enough resistance to prevent rotation about the base.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eCan bolts be installed in the pilot holes?\u003c\/strong\u003e No. The manufacturer states that bolts should not be installed in those pilot holes.\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":53010975490342,"sku":"BC40Z","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/BC40Z_00707392228301_Product_Photo_04_38451206-a75d-4c44-b617-b8b731061c83.jpg?v=1776192546","url":"https:\/\/www.toolnut.com\/products\/simpson-strong-tie-zmax-galvanized-post-base-for-4x-bc40z","provider":"Tool Nut","version":"1.0","type":"link"}