{"product_id":"ez-loader-5-8-hex-bolt-290-001697","title":"EZ Loader 5\/8\"-11 x 8\" Zinc-Plated Hex Bolt | 290-001697","description":"\u003ch2\u003eEZ Loader 5\/8\"-11 x 8\" Hex Head Bolt — Heavy-Duty Extended-Length Hardware\u003c\/h2\u003e\n\u003cp\u003eThis OEM EZ Loader hex head bolt is designed for trailer applications requiring maximum clamping force, extended reach, and reliable structural fitment. The 5\/8\" diameter provides increased load capacity for high-stress connection points.\u003c\/p\u003e\n\u003cp\u003eAt 8\" in length, this bolt is used in multi-layer assemblies and longer mounting spans where shorter bolts cannot provide proper thread engagement or structural support.\u003c\/p\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 15px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 34%; padding: 10px 12px; font-weight: bold; border: 1px solid #d9e2e8; background: #f8fbfc;\"\u003ePart Number:\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; border: 1px solid #d9e2e8;\"\u003e290-001697\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 12px; font-weight: bold; border: 1px solid #d9e2e8; background: #f8fbfc;\"\u003eComponent Type:\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; border: 1px solid #d9e2e8;\"\u003eHex Head Bolt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 12px; font-weight: bold; border: 1px solid #d9e2e8; background: #f8fbfc;\"\u003eDiameter \/ Thread:\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; border: 1px solid #d9e2e8;\"\u003e5\/8\"-11 UNC (Coarse Thread)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 12px; font-weight: bold; border: 1px solid #d9e2e8; background: #f8fbfc;\"\u003eLength:\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; border: 1px solid #d9e2e8;\"\u003e8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 12px; font-weight: bold; border: 1px solid #d9e2e8; background: #f8fbfc;\"\u003eGrade:\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; border: 1px solid #d9e2e8;\"\u003eGrade 5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 12px; font-weight: bold; border: 1px solid #d9e2e8; background: #f8fbfc;\"\u003eMaterial \/ Finish:\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; border: 1px solid #d9e2e8;\"\u003eZinc-Plated Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 12px; font-weight: bold; border: 1px solid #d9e2e8; background: #f8fbfc;\"\u003eCommon Use:\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; border: 1px solid #d9e2e8;\"\u003eHeavy-duty frame connections, extended bracket assemblies, bunk and roller system mounting, and multi-layer structural components\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 12px; font-weight: bold; border: 1px solid #d9e2e8; background: #f8fbfc;\"\u003eFunction:\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; border: 1px solid #d9e2e8;\"\u003eProvides high clamping force across long mounting spans while maintaining alignment and load distribution\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 12px; font-weight: bold; border: 1px solid #d9e2e8; background: #f8fbfc;\"\u003eRecommended Hardware:\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; border: 1px solid #d9e2e8;\"\u003eTypically used with 5\/8\"-11 locknuts and hardened washers for proper load handling and vibration resistance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 12px; font-weight: bold; border: 1px solid #d9e2e8; background: #f8fbfc;\"\u003eIncluded:\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; border: 1px solid #d9e2e8;\"\u003eBolt only (nuts and washers sold separately unless noted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 12px; font-weight: bold; border: 1px solid #d9e2e8; background: #f8fbfc;\"\u003eImportant Note:\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; border: 1px solid #d9e2e8;\"\u003eThis bolt requires matching 5\/8\" hardware and mounting holes. Length and grade are critical. Incorrect sizing can lead to misalignment or reduced clamping strength.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eDesigned for Extended-Length Structural Mounting\u003c\/h3\u003e\n\u003cp\u003eThis bolt is used in applications where longer reach is required to secure multiple components across wider spacing or deeper mounting configurations.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFrame and crossmember connections\u003c\/li\u003e\n\u003cli\u003eExtended bunk and roller assemblies\u003c\/li\u003e\n\u003cli\u003eMulti-layer bracket mounting\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eBuilt for applications where shorter bolts cannot provide proper thread engagement.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eGrade 5 Strength\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMedium carbon steel construction\u003c\/li\u003e\n\u003cli\u003eDesigned for structural trailer use\u003c\/li\u003e\n\u003cli\u003eBalances strength and flexibility under dynamic loads\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSuitable for high-load environments with vibration and repeated stress.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eZinc-Plated Finish\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSacrificial corrosion protection\u003c\/li\u003e\n\u003cli\u003eHelps protect base metal and surrounding trailer components\u003c\/li\u003e\n\u003cli\u003eConsistent with OEM EZ Loader hardware systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eZinc is designed to wear first, helping protect the trailer over time.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eWhy This Part Matters\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMaintains structural integrity across long mounting spans\u003c\/li\u003e\n\u003cli\u003eSupports proper alignment of major components\u003c\/li\u003e\n\u003cli\u003ePrevents loosening in vibration-prone areas\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eHardware is part of the trailer system—not interchangeable by appearance alone.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eReal-World Insight\u003c\/h3\u003e\n\u003cp\u003eAt \u003cstrong\u003eEZLoaderParts411.com\u003c\/strong\u003e, extended-length bolts like this are used where trailer geometry requires additional reach. Using the correct length ensures proper thread engagement and prevents movement or misalignment over time.\u003c\/p\u003e\n\u003cp\u003eNeed help confirming fitment? View \u003ca href=\"https:\/\/ezloadertrailers411.com\/boat-trailer-fitment-guides\/\" target=\"_blank\" title=\"EZ Loader Trailer Fitment Guides \u0026amp; Configurations\" rel=\"noopener\"\u003eEZ Loader Trailer Fitment Guides\u003c\/a\u003e to see how hardware is used across real trailer configurations.\u003c\/p\u003e","brand":"EZLoaderParts411.com","offers":[{"title":"Default Title","offer_id":52897100300653,"sku":"290-001697","price":18.2,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/3761\/6493\/files\/290-0016975.8x8hexboltmeasurement.jpg?v=1767893702","url":"https:\/\/ezloaderparts411.com\/products\/ez-loader-5-8-hex-bolt-290-001697","provider":"EZLoaderParts411.com","version":"1.0","type":"link"}