{"product_id":"value-collection-217238msc-carriage-bolt-5-8-11-4-1-2-in-grade-8","title":"Value Collection 217238MSC Carriage Bolt 5\/8-11 4-1\/2 in Grade 8","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 217238MSC is a Grade 8 alloy steel carriage bolt with a 5\/8-11 UNC thread size and a 4-1\/2-inch length under the head. It features a square neck that locks into place when driven through wood or soft material, preventing the fastener from spinning during nut installation. The bolt is fully threaded along its 4-1\/2-inch shank and carries an uncoated, bright finish. Grade 8 alloy steel provides high tensile strength suited for heavy-duty structural and mechanical fastening applications. This fastener meets SAE J429 standards and is sold individually.\u003c\/p\u003e\n\u003cp\u003eThis carriage bolt is used in structural assemblies, heavy equipment mounting, timber connections, and general industrial fastening where a Grade 8 rating is required. The 5\/8-11 coarse thread pattern is a common size in both construction and manufacturing environments. Licensed contractors, millwrights, and maintenance technicians regularly specify fully threaded carriage bolts in this size range when working with thick material stacks or when a full-thread engagement is needed along the entire grip length.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eGrade 8 alloy steel construction for high tensile strength in demanding applications\u003c\/li\u003e\n  \u003cli\u003e5\/8-11 UNC coarse thread, fully threaded along the 4-1\/2-inch shank\u003c\/li\u003e\n  \u003cli\u003eSquare neck design resists rotation during tightening without requiring a wrench on the bolt head\u003c\/li\u003e\n  \u003cli\u003eUncoated bright finish — suitable for indoor structural use or where secondary coating will be applied\u003c\/li\u003e\n  \u003cli\u003eMeets SAE J429 fastener standard\u003c\/li\u003e\n  \u003cli\u003eSold as a single unit with no minimum order requirement\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in structural and mechanical assemblies requiring a 5\/8-11 UNC carriage bolt with a Grade 8 alloy steel rating and full thread engagement.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eCarriage bolts are typically installed by driving the head flush into the mating material so the square neck seats and locks, then securing with a flat washer and hex nut from the opposite side. Use a torque wrench on the nut side only — do not apply rotational force to the domed head. Follow applicable structural or mechanical codes when specifying Grade 8 fasteners in load-bearing joints. Inspect the square neck seat for proper seating before final torque to prevent fastener spin during service.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5\/8-11\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 4-1\/2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Style\u003c\/strong\u003e: Fully Threaded\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNeck Type\u003c\/strong\u003e: Square\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Alloy Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: Grade 8\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Uncoated \/ Bright\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFastener Standard\u003c\/strong\u003e: SAE J429\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.427 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31161603\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: VALUE COLLECTION\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 217238MSC\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51716383277362,"sku":"217238MSC","price":15.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/94ee77dad00547d98ed0becb32696267_62c6cf90-65d1-4c23-a23f-15979af8f3cb.jpg?v=1788525220","url":"https:\/\/voomisupply.com\/products\/value-collection-217238msc-carriage-bolt-5-8-11-4-1-2-in-grade-8","provider":"Voomi Supply","version":"1.0","type":"link"}