{"product_id":"spax-1-4-in-x-2-1-2-in-powerlag-washer-head-structural-screws-heavy","title":"SPAX 1\/4 in x 2-1\/2 in PowerLag Washer Head Structural Screws - Heavy","description":"\u003cp\u003eIn this review the SPAX 1\/4 in x 2-1\/2 in PowerLag washer head screws are evaluated for builders and serious DIYers who need a durable structural wood fastener. The bottom line: these screws stand out for installation speed and long-term holding power thanks to SPAX patented thread design and heat treated Grade 5 construction. The included T-Star drive and bulk pail with bit make them convenient for larger jobs, and their corrosion resistant finish and ICC-ES recognition make them a practical choice for treated lumber and exterior applications.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePatented thread technology:\u003c\/strong\u003e Threads are engineered to drive faster and reduce splitting, which lets you install connections with less effort and lower risk to the wood.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat treated Grade 5 durability:\u003c\/strong\u003e Heat treatment increases tensile strength and reduces breakage so the screws hold up under structural loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eT-Star drive compatibility:\u003c\/strong\u003e The 6-lobe drive provides superior bit engagement for quicker installation with impact drivers and fewer stripped heads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eICC-ES recognized:\u003c\/strong\u003e Meeting ESR-1783 shows these fasteners are acceptable for code-recognized structural wood to wood applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoated for exterior use:\u003c\/strong\u003e Corrosion resistant finish and suitability for treated lumber makes them appropriate for outdoor or pressure-treated projects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBulk pail with bit included:\u003c\/strong\u003e Supplied in a 500 ea pail and with a bit, they are ready for larger jobs without repeated trips to the store.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThese screws are best for carpenters, deck builders, and contractors who need a reliable, code-friendly structural wood fastener that installs quickly and resists pullout. The combination of the patented thread form and heat treated core suits applications where strength and clean wood performance matter.\u003c\/p\u003e\n\u003cp\u003eThey are less suitable for very fine finish work where a smaller head or concealable fastener is required, or for metal-to-metal connections where a different fastener type would be preferable.\u003c\/p\u003e\n\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eExcellent installation speed and reduced wood splitting thanks to the patented threads.\u003c\/li\u003e\n\u003cli\u003eHigh strength from heat treated Grade 5 construction reduces the chance of breakage on demanding jobs.\u003c\/li\u003e\n\u003cli\u003eVery good pullout resistance and performance in treated lumber, according to user reports.\u003c\/li\u003e\n\u003cli\u003eConvenient bulk pail with included bit and strong bit engagement from the T-Star drive.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWasher head screws are not ideal when a flush or concealed fastener is required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct\u003c\/td\u003e\n\u003ctd\u003eSPAX PowerLag washer head screw\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e1\/4 in x 2-1\/2 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003e500 ea bulk pail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrive type\u003c\/td\u003e\n\u003ctd\u003eT-Star 6-lobe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial \/ treatment\u003c\/td\u003e\n\u003ctd\u003eCarbon steel, heat treated Grade 5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApprovals\u003c\/td\u003e\n\u003ctd\u003eICC-ES Report ESR-1783 (structural wood to wood)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntended use\u003c\/td\u003e\n\u003ctd\u003eExterior and treated lumber, structural wood connections\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eFor professionals and serious DIYers working on structural wood projects, these SPAX PowerLag screws are a solid value: they combine faster, cleaner installation with heat treated strength and code recognition. Choose them when holding power, durability in treated lumber, and installation speed matter most.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAre these screws suitable for pressure-treated lumber?\u003c\/strong\u003e\u003cbr\u003eYes. The coating and material are recommended for treated lumber and exterior applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat driver bit do I need?\u003c\/strong\u003e\u003cbr\u003eUse a T-Star 6-lobe bit; one is included with the bulk pail for convenience.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre these acceptable for structural connections?\u003c\/strong\u003e\u003cbr\u003eYes. They are ICC-ES recognized for structural wood to wood use under report ESR-1783.\u003c\/p\u003e","brand":"Altenloh, Brink \u0026 Co","offers":[{"title":"Default Title","offer_id":48262533841115,"sku":"B018JQEOY4","price":140.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71yMhZtVHzL._SL1500.jpg?v=1778275947","url":"https:\/\/gearmusthave.com\/products\/spax-1-4-in-x-2-1-2-in-powerlag-washer-head-structural-screws-heavy","provider":"GearMustHave","version":"1.0","type":"link"}