{"title":"Grade 8 Flange Bolts","description":"\u003ch2\u003eConquest Grade 8 Flange Bolts for High-Stress Connections\u003c\/h2\u003e\n\u003cp\u003eEngineered for demanding applications, Conquest Grade 8 flange bolts deliver uncompromising strength and efficiency. Manufactured from premium alloy steel and certified to SAE J429 standards, these bolts feature a built-in flange under the hex head, acting as an integrated washer to spread load and reduce the need for extra hardware. This design simplifies installation while improving joint stability in high-torque environments.\u003c\/p\u003e\n\u003cp\u003eIdeal for metal-to-metal fastening, these flange bolts are commonly used in truck frames, heavy machinery, engines, valves, pumps, tractors, and tanks. The hex head allows for easy tightening with standard tools, speeding up assembly without sacrificing holding power.\u003c\/p\u003e\n\u003cp\u003eTo ensure long service life, these bolts come in two corrosion-resistant finishes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eZinc Yellow:\u003c\/strong\u003e Excellent for environments exposed to moisture, humidity, or chemical contact.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlack Phosphate \u0026amp; Oil:\u003c\/strong\u003e Designed for dry, indoor settings where a clean, uniform finish and base-level corrosion protection are needed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhen your job calls for maximum clamping force, superior fatigue resistance, and hardware that holds up to repeated stress, trust Conquest Grade 8 flange bolts to perform.\u003c\/p\u003e","products":[{"product_id":"5-8-18-x-1-1-2-conquest-grade-8-indented-fine-thread-flange-bolt-black-phosphate-oil","title":"5\/8\" x 1-1\/2\" Conquest Grade 8 Indented Fine Thread Flange Bolt - Plain","description":"\u003ch2\u003e5\/8\" x 1-1\/2\" Conquest Grade 8 Indented Fine Thread Flange Bolt With Plain Finish\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003e\u003cem\u003eWhen pairing a nut with a hex bolt, the material and finish must match. If these do not match, the nut will not fit the bolt.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\u003ch2\u003e5\/8\" Grade 8 Indented Flange Bolts - Fine Thread, High Strength, No Washer Needed\u003c\/h2\u003e\n\u003cp\u003eConquest Grade 8 Indented Flange Bolts in 5\/8\" diameter are engineered for maximum strength and superior vibration resistance. With a fine thread profile (18 TPI), indented hex head, and an integrated flange, these bolts offer unmatched holding power in high-load applications, without the need for a separate washer.\u003c\/p\u003e\n\nh2\u0026gt;5\/8\" Grade 8 Indented Flange Bolts - Fine Thread, High Strength, No Washer Needed\u003cp\u003eManufactured from high-strength, heat-treated alloy steel and built to SAE Grade 8 standards, these flange bolts deliver outstanding tensile strength and shear resistance. The fine thread increases surface contact, reduces the chance of loosening under vibration, and is ideal for torque-critical assemblies.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e5\/8\" Diameter Grade 8 Alloy Steel:\u003c\/strong\u003e Built for strength, longevity, and high-load performance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndented Hex Head:\u003c\/strong\u003e Provides positive tool engagement for easy installation and removal.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIntegrated Flange:\u003c\/strong\u003e Eliminates need for separate washers while evenly distributing clamping force.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e18 TPI Fine Thread:\u003c\/strong\u003e Improves torque retention and vibration resistance in demanding assemblies.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlain Finish:\u003c\/strong\u003e Cost-effective and ideal for dry or lubricated environments where corrosion isn't a concern.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTorque-Ready:\u003c\/strong\u003e Designed for automotive, heavy machinery, suspension systems, and industrial rigs.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWasher-Free Installation:\u003c\/strong\u003e Flange seats flush to spread load and simplify hardware selection.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eHeavy machinery assembly and maintenance\u003c\/li\u003e\n  \u003cli\u003eAutomotive engine, frame, and suspension components\u003c\/li\u003e\n  \u003cli\u003eIndustrial manufacturing equipment and fixtures\u003c\/li\u003e\n  \u003cli\u003eAgricultural and off-highway vehicle repairs\u003c\/li\u003e\n  \u003cli\u003eStructural assembly where high tensile strength is required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eAlways torque to manufacturer specifications using a calibrated wrench\u003c\/li\u003e\n  \u003cli\u003ePair with fine-thread nuts for optimal strength and engagement\u003c\/li\u003e\n  \u003cli\u003eSkip the washer, the integrated flange head handles pressure distribution\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eCalifornia Residents: \u003ca href=\"\/prop-65\" style=\"color: black;\" target=\"_blank\"\u003eWARNING\u003c\/a\u003e\u003c\/b\u003e\u003c\/p\u003e","brand":"US Cargo Control","offers":[{"title":"Default Title","offer_id":44482081882157,"sku":"HBFG8BPO-58X112","price":2.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/2229\/9949\/files\/HBFG8BPO-58X112.02.jpg?v=1768411819"},{"product_id":"1-4-20-x-1-2-conquest-grade-8-indented-flange-bolt-black-phosphate-oil","title":"1\/4\" x 1\/2\" Conquest Grade 8 Indented Flange Bolt - Plain","description":"\u003ch2\u003e1\/4\" x 1\/2\" Conquest Grade 8 Indented Flange Bolt\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003e\u003cem\u003eWhen pairing a nut with a hex bolt, the material and finish must match. If these do not match, the nut will not fit the bolt.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe 1\/4\" Conquest Grade 8 Indented Flange Bolt is engineered for strength and reliability in demanding fastening applications. Manufactured from premium Grade 8 alloy steel with a precision‑machined coarse thread (20 TPI), this bolt delivers superior tensile performance for structural assemblies, machinery, and heavy equipment repair. The integrated indented flange distributes load evenly while minimizing surface damage, so you can install with fewer components and less hassle.\u003c\/p\u003e\n\n\u003ch2\u003eBuilt‑In Load Distribution and High‑Strength Performance\u003c\/h2\u003e\n\u003cp\u003eThis flange bolt is designed for applications where secure clamping and material integrity are essential. Its plain finish makes it cost‑effective and ideal for interior or controlled environments where corrosion protection isn’t required. Pair with matching Grade 8 nuts for maximum performance and reliability.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrade 8 Alloy Steel:\u003c\/strong\u003e Superior tensile strength for heavy‑load and critical applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndented Flange Head:\u003c\/strong\u003e Acts like an integrated washer to distribute load evenly and reduce hardware count.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlain Finish:\u003c\/strong\u003e Cost‑effective solution for indoor or low‑exposure jobs.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoarse Thread (20 TPI):\u003c\/strong\u003e Provides secure engagement and smooth installation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrecision Machined Threads:\u003c\/strong\u003e Ensures secure clamp force without thread binding.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eStructural steel bolting in commercial and industrial construction\u003c\/li\u003e\n  \u003cli\u003eAssembly and maintenance of agricultural and heavy-duty machinery\u003c\/li\u003e\n  \u003cli\u003eAutomotive frame, suspension, and chassis installations\u003c\/li\u003e\n  \u003cli\u003eIndustrial machinery builds and repairs requiring high-strength fastening\u003c\/li\u003e\n  \u003cli\u003eOEM hardware replacement in equipment where tensile reliability is critical\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eAlways use with matching Grade 8 nuts to maintain load capacity and thread compatibility\u003c\/li\u003e\n  \u003cli\u003eTorque to spec per ASTM A354 or SAE J429 guidelines to prevent thread damage or bolt failure\u003c\/li\u003e\n  \u003cli\u003eInspect threads before installation; clean and align properly to ensure smooth engagement\u003c\/li\u003e\n  \u003cli\u003eDo not overtighten, built-in flange provides proper load distribution without additional washers\u003c\/li\u003e\n  \u003cli\u003eUse in dry, protected environments to maximize bolt lifespan with plain finish\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eCalifornia Residents: \u003ca href=\"\/prop-65\" style=\"color: black;\" target=\"_blank\"\u003eWARNING\u003c\/a\u003e\u003c\/b\u003e\u003c\/p\u003e","brand":"US Cargo Control","offers":[{"title":"Default Title","offer_id":44482086273069,"sku":"HBG8BPO-14X12","price":0.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/2229\/9949\/files\/HBG8BPO-14X12.01.jpg?v=1768411610"},{"product_id":"1-4-20-x-1-2-conquest-grade-8-non-serrated-flange-bolt-zinc-yellow","title":"1\/4\" x 1\/2\" Conquest Grade 8 Non-Serrated Flange Bolt - Zinc Yellow","description":"\u003ch2\u003e1\/4\" x 1\/2\" Conquest Grade 8 Non-Serrated Flange Bolt With Yellow Zinc Finish\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003e\u003cem\u003eWhen pairing a nut with a hex bolt, the material and finish must match. If these do not match, the nut will not fit the bolt.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe 1\/4\" Conquest Grade 8 Non‑Serrated Flange Bolt with a zinc yellow finish is engineered for serious strength and long-term durability. Built from high-tensile alloy steel and finished in corrosion-resistant zinc yellow, it's ideal for structural, mechanical, or chassis applications where clean installation and surface protection are critical.\u003c\/p\u003e\n\n\u003ch2\u003eFlange Head Strength Without the Surface Damage\u003c\/h2\u003e\n\u003cp\u003eThis flange bolt features a built-in washer-style head that distributes load evenly, reducing the need for additional hardware and minimizing stress on contact surfaces. The non-serrated design protects painted or precision parts from gouging during installation. Designed to SAE J429 Grade 8 and ASTM A354 Grade BD equivalency for performance under high-stress and vibration conditions.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrade 8 Alloy Steel:\u003c\/strong\u003e Built for strength and stress-resistance in critical fastening applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eZinc Yellow Finish:\u003c\/strong\u003e Corrosion-resistant and ideal for high-visibility or professional finish requirements.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNon-Serrated Flange Head:\u003c\/strong\u003e Eliminates the need for washers while protecting contact surfaces.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Profile:\u003c\/strong\u003e 20 threads per inch with coarse threading for strong, quick engagement.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMultiple Size Options:\u003c\/strong\u003e Available in a variety of diameters and lengths to suit your project.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eStructural steel framing and fabrication in construction or industrial settings\u003c\/li\u003e\n  \u003cli\u003eHeavy equipment assembly including loaders, lifts, and mechanical arms\u003c\/li\u003e\n  \u003cli\u003eAutomotive chassis, suspension systems, and drivetrain components\u003c\/li\u003e\n  \u003cli\u003eAgricultural and industrial machinery installations\u003c\/li\u003e\n  \u003cli\u003eHigh-load bolting where vibration resistance and surface protection are critical\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eTorque bolts to SAE J429 specifications to ensure proper preload and bolt performance\u003c\/li\u003e\n  \u003cli\u003eUse with Grade 8 nuts and hardened washers to maintain full tensile strength and load distribution\u003c\/li\u003e\n  \u003cli\u003eAvoid overtightening to protect mating surfaces, especially in slotted holes or precision applications\u003c\/li\u003e\n  \u003cli\u003eInspect flange seating for flush contact to prevent loosening under vibration\u003c\/li\u003e\n  \u003cli\u003eVerify the bolt length provides full thread engagement without bottoming out\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eCalifornia Residents: \u003ca href=\"\/prop-65\" style=\"color: black;\" target=\"_blank\"\u003eWARNING\u003c\/a\u003e\u003c\/b\u003e\u003c\/p\u003e","brand":"US Cargo Control","offers":[{"title":"Default Title","offer_id":44482086305837,"sku":"HBG8ZY-14X12","price":0.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/2229\/9949\/files\/HBG8ZY-14X12.01.jpg?v=1768411614"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/2229\/9949\/collections\/Grade_8_Hex_Bolts_Colleciton_IMage.jpg?v=1768407706","url":"https:\/\/www.uscargocontrol.com\/collections\/grade-8-flange-bolts.oembed","provider":"US Cargo Control","version":"1.0","type":"link"}