{"product_id":"hillman-fasteners-240042-carriage-bolt-1-4-20-x-3-1-2-in-100-pack","title":"Hillman Fasteners 240042 Carriage Bolt 1\/4-20 X 3-1\/2 in 100 Pack","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HILLMAN FASTENERS 240042 is a 1\/4-20 x 3-1\/2 inch steel carriage bolt designed for general structural fastening in wood and metal assemblies. The round dome head sits flush against the surface for a finished appearance, while the square neck beneath the head bites into wood to prevent rotation during tightening. Coarse thread provides strong pull-down force and resists loosening under vibration. Each box contains 100 bolts, making this a practical stocking item for contractors and maintenance crews who work through fasteners at volume.\u003c\/p\u003e\n\u003cp\u003eCarriage bolts in this size are commonly used in deck construction, fence framing, utility structures, and equipment mounting applications. The 1\/4-20 coarse thread pattern is one of the most widely specified bolt sizes in residential and light commercial work. This 100-count pack suits job-site use where consistent hardware availability reduces downtime. Installation requires no special tooling beyond a standard wrench or socket on the nut side.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1\/4-20 coarse thread for strong clamping force and broad nut compatibility\u003c\/li\u003e\n  \u003cli\u003e3-1\/2 inch length suits medium-depth through-bolt applications in framing and structural assemblies\u003c\/li\u003e\n  \u003cli\u003eRound dome head provides a low-profile finished appearance on the bolt face\u003c\/li\u003e\n  \u003cli\u003eSquare neck locks into wood substrate to prevent spinning without a second wrench\u003c\/li\u003e\n  \u003cli\u003eSteel construction for reliable strength in standard load-bearing applications\u003c\/li\u003e\n  \u003cli\u003e100-count pack reduces per-unit cost and supports high-volume job-site use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard 1\/4-20 coarse thread carriage bolt compatible with any 1\/4-20 nut, washer, and coupling hardware meeting ASME B18.5 carriage bolt geometry.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eCarriage bolts are typically installed by a carpenter, contractor, or general tradesperson using standard hand or power tools. Drive the bolt through a pre-drilled clearance hole so the square neck seats fully into the substrate before applying the nut. Tighten from the nut side only — the square neck is intended to resist rotation, and forcing the head can damage the seating surface. Follow applicable building codes for structural connections, including load requirements specified in the IRC or IBC where relevant.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-20\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 3-1\/2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Style\u003c\/strong\u003e: Round Dome\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNeck Style\u003c\/strong\u003e: Square Neck\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: Coarse\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 100 bolts\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Weight\u003c\/strong\u003e: 40.05 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: HILLMAN FASTENERS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 240042\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HILLMAN","offers":[{"title":"Default Title","offer_id":51559148323122,"sku":"240042","price":226.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a9aca8f191d19b3273a5ee28d9093e57_ba09a200-3c76-4f81-b5a0-c91b93419afb.jpg?v=1786429238","url":"https:\/\/voomisupply.com\/products\/hillman-fasteners-240042-carriage-bolt-1-4-20-x-3-1-2-in-100-pack","provider":"Voomi Supply","version":"1.0","type":"link"}