{"product_id":"3-8-x-3-in-lag-screw-kit-50-pack-hot-dip-galvanized-hold","title":"3\/8 x 3 in Lag Screw Kit (50 Pack) - Hot-Dip Galvanized Hold","description":"\u003cp\u003eIn this review the 3\/8 x 3 in Lag Screw Kit (50 Pack) is examined for homeowners and contractors who need a mid-size, weather-resistant fastener for outdoor and structural work. The bottom line: this kit stands out for its combination of corrosion protection and completeness, arriving with 50 Grade 307A lag bolts and 50 USS flat washers so buyers can start most deck, fence or pergola jobs without hunting for parts. Our review focuses on durability, compatibility with treated lumber and real-world convenience.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter and length:\u003c\/strong\u003e The 3\/8 in diameter and 3 in length provide a balance of shear strength and embedment suitable for medium-duty structural fastening in wood.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete kit:\u003c\/strong\u003e Including 50 lag bolts and 50 USS flat washers means projects can proceed without sourcing separate washers, saving time on prep and reducing hardware mismatch.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHot-dip galvanized finish:\u003c\/strong\u003e The hot-dip galvanization offers superior rust resistance for outdoor use, extending service life when exposed to the elements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility with treated lumber:\u003c\/strong\u003e Rated for use in ACQ treated lumber, the bolts are suitable for pressure-treated decks and exterior builds where corrosion is a concern.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards compliance:\u003c\/strong\u003e Meeting ASTM A307, ASME B18.2.1, ASME B18.21.1 and ASTM F2329 ensures consistent dimensions and material performance for industrial or commercial applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis kit is aimed at DIYers, carpenters and small contractors who frequently build or repair outdoor wood structures such as decks, stairs, fences and pergolas and need a ready supply of mid-size lag screws with washers. The hot-dip galvanized finish and Grade 307A material make it practical for seasonal exposure and treated lumber projects.\u003c\/p\u003e\n\u003cp\u003eCustomers who need heavier structural fasteners, specialty head styles, or metric sizes should look elsewhere. Also, installers who prefer self-drilling anchors or one-piece coated fasteners for submerged or marine environments may want a different specification.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDurable hot-dip galvanized coating provides reliable corrosion resistance for outdoor projects.\u003c\/li\u003e\n\u003cli\u003eKit includes 50 screws and 50 washers so projects can start immediately without extra parts.\u003c\/li\u003e\n\u003cli\u003eMeets multiple industry standards, offering predictable dimensions and material quality.\u003c\/li\u003e\n\u003cli\u003eSuitable for ACQ treated lumber, reducing risk of accelerated corrosion common with some coatings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSome users report mixed hold capacity under extreme loads, so it may not replace specialized structural anchors for very high-stress connections.\u003c\/li\u003e\n\u003cli\u003eA pilot hole is recommended for installation, adding an extra step compared with self-tapping alternatives.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e3\/8 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\u003eHead width\u003c\/td\u003e\n\u003ctd\u003e9\/16 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003e50 screws and 50 washers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWasher size (OD)\u003c\/td\u003e\n\u003ctd\u003e1 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eHot-dip galvanized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandards\u003c\/td\u003e\n\u003ctd\u003eASTM A307; ASME B18.2.1; ASME B18.21.1; ASTM F2329\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe 3\/8 x 3 in Lag Screw Kit is a practical, value-minded choice for most outdoor wood projects where corrosion resistance and ready-to-use hardware matter. Contractors and DIY builders will appreciate the included USS washers and the hot-dip galvanized finish; however, those needing extreme load capacity or faster installation with self-drilling screws should consider alternatives. Overall it represents solid value for typical deck and fence work.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAre these safe for pressure-treated lumber?\u003c\/strong\u003e\u003cbr\u003eYes, the hot-dip galvanized finish and Grade 307A bolts are specified as suitable for use in ACQ treated lumber.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need to pre-drill?\u003c\/strong\u003e\u003cbr\u003eA pilot hole is recommended for proper seating and to reduce the risk of splitting, especially near board ends.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat size washer is included?\u003c\/strong\u003e\u003cbr\u003eThe kit includes USS flat washers with an outside diameter of 1 in for each lag screw.\u003c\/p\u003e","brand":"Makers Bolt","offers":[{"title":"Default Title","offer_id":48612531667163,"sku":"B0CSLRQXFP","price":38.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71ixnVmTyrL._SL1500_c00a77db-728b-4470-a410-1db35153c4b2.jpg?v=1778415217","url":"https:\/\/gearmusthave.com\/products\/3-8-x-3-in-lag-screw-kit-50-pack-hot-dip-galvanized-hold","provider":"GearMustHave","version":"1.0","type":"link"}