{"product_id":"value-collection-kp64909-carriage-bolt-5-8-11-3in-grade-8","title":"Value Collection KP64909 Carriage Bolt 5\/8-11 3in Grade 8","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION KP64909 is a Grade 8 alloy steel carriage bolt with a 5\/8-11 UNC thread and a 3-inch length under head. The square neck under the domed head locks into material during installation, preventing the fastener from spinning without the need for a secondary tool on the bolt head. The zinc trivalent chromate finish provides corrosion resistance suited to demanding service environments. This bolt is fully threaded along the entire 3-inch shank. It meets SAE J429 standards and is sold in a package quantity of 25.\u003c\/p\u003e\n\u003cp\u003eGrade 8 carriage bolts in this thread size are commonly used in heavy structural assemblies, machinery mounting, wood-to-metal connections, and agricultural equipment fabrication. The 5\/8-11 UNC thread is a standard coarse pitch widely used in North American industrial and construction applications. These fasteners are appropriate for use wherever high tensile strength and a clean, flush-bearing bolt head profile are required. Installation is typically performed by mechanics, millwrights, ironworkers, and general tradespeople working with structural or mechanical assemblies.\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 fully threaded shank, 3 inches length under head\u003c\/li\u003e\n  \u003cli\u003eSquare neck under domed head prevents rotation during nut tightening\u003c\/li\u003e\n  \u003cli\u003eZinc trivalent chromate finish for corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eMeets SAE J429 fastener standard\u003c\/li\u003e\n  \u003cli\u003eSold in a package of 25 fasteners\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard 5\/8-11 UNC Grade 8 carriage bolt suitable for structural, mechanical, and fabrication applications requiring a high-strength, fully threaded fastener with a square-neck domed head profile.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by inserting the bolt through a pre-drilled hole so the square neck seats firmly into the material, then threading a nut onto the exposed end and tightening with a wrench or impact tool. No wrench is needed on the bolt head when the square neck is properly seated. Always verify hole size matches the bolt shank diameter and consult applicable structural or mechanical codes for torque requirements. Use appropriate personal protective equipment when working with fasteners in high-load assemblies.\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: 3 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreading\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: Zinc Trivalent Chromate\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: 25\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: KP64909\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51699717701938,"sku":"KP64909","price":96.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a0231fe363c218b0dfcd7abf2b90e587.jpg?v=1788379726","url":"https:\/\/voomisupply.com\/products\/value-collection-kp64909-carriage-bolt-5-8-11-3in-grade-8","provider":"Voomi Supply","version":"1.0","type":"link"}