{"product_id":"lionmax-lag-screws-3-in-14-x-3-heavy-duty-structural-screws","title":"LIONMAX Lag Screws 3 in #14 x 3 - Heavy Duty Structural Screws","description":"\u003cp\u003eIn this review of the LIONMAX Lag Screws 3 in #14 x 3 set, the bottom line is that these fasteners are aimed at builders and serious DIYers who need durable, corrosion-resistant lag screws for heavy woodwork. The reviewer found the standout reason to buy is the combination of heat treated steel strength and a double anti-corrosion coating that passed a 1000 hour salt spray test, giving confidence for outdoor and structural projects where longevity matters.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions \u0026amp; Strength:\u003c\/strong\u003e The 0.25 in thread diameter, 0.55 in head diameter and 3 in length are sized for substantial structural connections while the heat treated steel provides long-term durability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnti-Corrosion Coatings:\u003c\/strong\u003e Double coatings resist rust and corrosion and maintain integrity in harsh conditions, backed by a 1000 hour salt spray test result.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKnurl Thread \u0026amp; Self-Tapping:\u003c\/strong\u003e The knurled shank and deep threads reduce required drill torque and help the screw bite into timber without splitting the wood.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModified Truss Washer Head:\u003c\/strong\u003e The washer-style head gives a neater, more flush finish on visible joinery and helps distribute clamping force.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStar Drive with Bit:\u003c\/strong\u003e The T30 star drive reduces cam-out and pairs with a T30 bit for safer, efficient fastening in heavy duty work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Applications:\u003c\/strong\u003e Suited for decks, log construction, timber framing and laminated beams where structural strength and corrosion resistance are required.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThe screws are best for contractors, framers, and experienced DIYers working on outdoor projects such as decks, pole barns, log homes and heavy timber connections who need lag-grade strength and corrosion protection. The heat treated steel and double coating make them a practical choice where exposure to weather or treated lumber is expected.\u003c\/p\u003e\u003cp\u003eThose looking for very small trim screws, fine finish work, or non-structural light interior use should look elsewhere, as the size and head style are intended for heavy timber and structural fastening rather than delicate visible trim.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eWell made and strong, performing like lag bolts for heavy timber and structural work.\u003c\/li\u003e\n\u003cli\u003eDouble anti-corrosion coating held up in extended salt spray testing, offering long service life outdoors.\u003c\/li\u003e\n\u003cli\u003eKnurled shank and type 17 notched point reduce pre-drilling and make installation easier in many timbers.\u003c\/li\u003e\n\u003cli\u003eT30 star drive and washer head provide secure drive engagement and a clean finished appearance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSome users report mixed ease of use; thicker timbers or very dense wood still require proper pilot holes and sufficient driver torque.\u003c\/li\u003e\n\u003cli\u003eWasher head is not suitable when a flat countersunk finish is required.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Diameter\u003c\/td\u003e\n\u003ctd\u003e0.25 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter\u003c\/td\u003e\n\u003ctd\u003e0.55 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e3 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrive Type\u003c\/td\u003e\n\u003ctd\u003eT30 Star Drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eHeat treated steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoating\u003c\/td\u003e\n\u003ctd\u003eDouble anti-corrosion coating (1000 hour salt spray test)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePoint Style\u003c\/td\u003e\n\u003ctd\u003eType 17 notched self-tapping point\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe LIONMAX 3 in #14 lag screws are a solid choice for anyone needing heavy duty, corrosion-resistant fasteners for structural woodwork. Their heat treated steel construction, proven coating and self-tapping design make them good value for decks, timber framing and outdoor builds where strength and longevity matter.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eDo these screws require pre-drilling?\u003c\/strong\u003e\u003cbr\u003eThey often reduce the need for pre-drilling thanks to the type 17 notched point and knurled shank, but pilot holes are recommended for very dense hardwoods or deep structural connections.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat bit is required?\u003c\/strong\u003e\u003cbr\u003eUse a T30 star bit for best drive engagement and to minimize stripping.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre they suitable for outdoor use?\u003c\/strong\u003e\u003cbr\u003eYes, the double anti-corrosion coatings passed a 1000 hour salt spray test, making them suitable for exterior applications.\u003c\/p\u003e","brand":"LIONMAX","offers":[{"title":"Default Title","offer_id":48226544156891,"sku":"B0C6XMQ2KM","price":59.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61pAnTQq3ML._SL1500.jpg?v=1770830663","url":"https:\/\/gearmusthave.com\/products\/lionmax-lag-screws-3-in-14-x-3-heavy-duty-structural-screws","provider":"GearMustHave","version":"1.0","type":"link"}