{"product_id":"lag-screws-bolts-5-16-in-x-3-in-30-pcs-black-stainless-hex-head","title":"Lag Screws Bolts 5\/16 in x 3 in 30-PCS - Black Stainless Hex Head","description":"\u003cp\u003eIn this review of the LIONMAX lag screws, the bottom line is straightforward: these 5\/16 in x 3 in hex head lag bolts are best for DIYers and contractors who need a corrosion-resistant, durable fastener for wood projects. The reviewer found the main reason to buy is the combination of 304 stainless steel strength and a black oxide coating that resists rust in outdoor conditions. For anyone building decks, joining large timbers, or doing exterior woodwork, these screws deliver predictable performance and a professional hex head design that reduces slipping during installation.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e304 Stainless Steel:\u003c\/strong\u003e Offers long-term strength and reliability so the screws do not break or deform under normal load during installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlack Oxide Coating:\u003c\/strong\u003e Adds corrosion resistance to help the lag screws withstand outdoor and challenging conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHexagon Head:\u003c\/strong\u003e Provides a secure grip for sockets or wrenches so installers can apply greater torque without slipping.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmooth Thread:\u003c\/strong\u003e Allows faster drilling into wood and consistent bite for strong joints when fastening timbers or deck boards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePack Size:\u003c\/strong\u003e The 30-PCS package gives a practical quantity for small to medium projects without excess leftover.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis product is aimed at homeowners, carpenters, and small contractors who routinely work with wood and need a reliable stainless steel lag screw for exterior applications such as deck building, pergolas, fence posts, and structural wood joining. The hex head and robust stainless construction suit users who use power sockets or impact wrenches and want hardware that holds up to weather.\u003c\/p\u003e\u003cp\u003eThose who should look elsewhere include specialists needing coated fasteners rated for marine saltwater immersion or proprietary structural certified bolts; this product is presented as high-quality stainless with a black oxide finish but not marketed as specialty marine-grade or certified structural anchors.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e304 stainless steel construction provides clear strength and resistance to deformation.\u003c\/li\u003e\n\u003cli\u003eBlack oxide coating reduces visible rust and extends outdoor lifespan.\u003c\/li\u003e\n\u003cli\u003eHex head and smooth thread design speed installation and reduce slippage under load.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eThe product is not described as a specialty marine or structural certified fastener, so those specific needs may require a different grade.\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eLIONMAX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoating\u003c\/td\u003e\n\u003ctd\u003eBlack oxide\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread diameter\u003c\/td\u003e\n\u003ctd\u003e5\/16 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread length\u003c\/td\u003e\n\u003ctd\u003e3 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead type\u003c\/td\u003e\n\u003ctd\u003eHexagon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage quantity\u003c\/td\u003e\n\u003ctd\u003e30 PCS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThese LIONMAX lag screws are a solid, good-value choice for anyone needing durable hex head wood fasteners for outdoor or heavy woodworking tasks. With 304 stainless steel and a black oxide finish, they balance corrosion resistance and installation performance, making them worthwhile for deck building and general exterior wood joining where certified specialty bolts are not required.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eAre these screws suitable for outdoor deck use?\u003c\/strong\u003e\u003cbr\u003eYes. The 304 stainless steel and black oxide coating make them suitable for exterior household applications like decks and wood joining.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat tools work best with the hex head?\u003c\/strong\u003e\u003cbr\u003eSockets, wrenches, and impact drivers with the appropriate hex socket provide the best torque and reduce slipping.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many screws come in the package?\u003c\/strong\u003e\u003cbr\u003eThe package contains 30 pieces of 5\/16 in x 3 in hex head lag screws.\u003c\/p\u003e","brand":"LIONMAX","offers":[{"title":"Default Title","offer_id":48627294634203,"sku":"B0CLNZCDLF","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51pnBGaBnUL._SL1500.jpg?v=1778499711","url":"https:\/\/gearmusthave.com\/products\/lag-screws-bolts-5-16-in-x-3-in-30-pcs-black-stainless-hex-head","provider":"GearMustHave","version":"1.0","type":"link"}