{"product_id":"1-2-in-x-4-in-carriage-bolt-kit-25-pack-hot-dip-galvanized","title":"1\/2 in x 4 in Carriage Bolt Kit 25 Pack - Hot Dip Galvanized","description":"\u003cp\u003eIn this review the 1\/2 in x 4 in carriage bolt kit is examined for homeowners and builders who need reliable exterior fasteners. The kit includes 25 Grade 307A carriage bolts plus 25 USS flat washers and 25 Grade 2\/A hex nuts, all with a hot dip galvanized coating that provides the single biggest reason to buy: corrosion resistance for outdoor projects. The reviewer found the semi-flush flat head and substantial shaft diameter make these bolts easy to install and well suited to heavy duty woodwork where long-term exposure to weather is expected.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete kit:\u003c\/strong\u003e Includes 25 carriage bolts, 25 USS thick washers and 25 hex nuts so a full run of fasteners is ready for a deck or pergola project without hunting for matching hardware.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHot dip galvanized coating:\u003c\/strong\u003e The coating offers superior corrosion resistance for exterior use and is suitable for ACQ treated lumber to reduce premature rusting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSemi-flush flat head:\u003c\/strong\u003e The flat head provides a neat, semi-flush finish that keeps heads low and reduces snagging on deck surfaces and structural timbers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandardized dimensions:\u003c\/strong\u003e With a 1\/2 in diameter, 4 in length and 1.062 in head diameter, these bolts follow common sizing for predictable fit in pre-drilled holes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeets industrial standards:\u003c\/strong\u003e Manufactured to meet or exceed ASME and ASTM specifications for strength and compatibility with common nuts and washers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis kit is aimed at DIYers, contractors and builders who need a reliable set of exterior carriage bolts for decks, pergolas, gazebos or heavy timber connections. Its inclusion of matching USS washers and hex nuts makes it practical for jobs where consistency and corrosion protection matter.\u003c\/p\u003e\n\u003cp\u003eThose who need stainless steel for marine environments or who require metric fasteners should look elsewhere; this kit is best when hot dip galvanized carbon steel hardware and common imperial sizing are acceptable.\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\u003eHot dip galvanized finish provides long-lasting rust resistance for outdoor use.\u003c\/li\u003e\n\u003cli\u003eComplete set with washers and nuts saves time sourcing compatible parts.\u003c\/li\u003e\n\u003cli\u003eRobust 1\/2 in diameter and semi-flush head give strength and a clean appearance for structural woodwork.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNot stainless steel, so it is less ideal for harsh saltwater exposure.\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\u003e1\/2 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e4 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead diameter\u003c\/td\u003e\n\u003ctd\u003e1.062 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWasher outside diameter\u003c\/td\u003e\n\u003ctd\u003e1-3\/8 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNut wrench size\u003c\/td\u003e\n\u003ctd\u003e3\/4 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContents\u003c\/td\u003e\n\u003ctd\u003e25 carriage bolts, 25 USS flat washers, 25 hex nuts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoating\u003c\/td\u003e\n\u003ctd\u003eHot dip galvanized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe 1\/2 in x 4 in carriage bolt kit delivers dependable, corrosion-resistant hardware for typical outdoor timber projects and is good value because it includes matching washers and nuts. For most decks, pergolas and heavy wood connections where galvanized hardware is acceptable, this kit offers strength and convenience without overspending.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAre these bolts suitable for treated lumber?\u003c\/strong\u003e\u003cbr\u003eYes, the hot dip galvanized coating is suitable for use in ACQ treated lumber and helps resist corrosion in common exterior applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo the nuts and washers match the bolts?\u003c\/strong\u003e\u003cbr\u003eYes, the kit includes USS thick flat washers and Grade 2\/A hex nuts sized to work with the 1\/2 in carriage bolts for a proper fit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill these hold up near the ocean?\u003c\/strong\u003e\u003cbr\u003eThey offer solid corrosion resistance for general outdoor use, but for constant saltwater exposure stainless steel fasteners are a better choice.\u003c\/p\u003e","brand":"Makers Bolt","offers":[{"title":"Default Title","offer_id":48239288484059,"sku":"B0CSTBWY5C","price":48.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71EESCFXpDL._SL1500.jpg?v=1776268667","url":"https:\/\/gearmusthave.com\/products\/1-2-in-x-4-in-carriage-bolt-kit-25-pack-hot-dip-galvanized","provider":"GearMustHave","version":"1.0","type":"link"}