{"product_id":"arp-200-8634-3-8-24-hex-nut-kit-10-pack","title":"ARP 3\/8-24 Hex Nut Kit (10 pack)","description":"\u003ch4\u003ePrecision-Ground Chrome Moly Hardware That Refuses to Back Down\u003c\/h4\u003e\n\u003cp\u003eThe ARP 200-8634 is a 3\/8-24 fine thread hex nut kit built from premium Chrome Moly Steel with a durable black oxide finish. Each kit includes 10 nuts rated to 180,000 PSI tensile strength, giving you the clamping force required for high-stress engine, drivetrain, and suspension applications. ARP 200-8634 uses a 9\/16-inch socket size for fast, clean installation across a wide range of bolt patterns. Whether you are building a race motor, replacing worn factory hardware, or assembling a high-performance street build, these hex nuts deliver the reliability ARP is known for worldwide.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eChrome Moly Steel construction for exceptional strength and fatigue resistance\u003c\/li\u003e\n\u003cli\u003eBlack oxide finish provides corrosion protection and a clean appearance\u003c\/li\u003e\n\u003cli\u003e3\/8-24 fine thread pitch for precise torque control and secure fastening\u003c\/li\u003e\n\u003cli\u003e9\/16-inch socket size for compatibility with standard tool sets\u003c\/li\u003e\n\u003cli\u003e180,000 PSI tensile strength rating for demanding high-load applications\u003c\/li\u003e\n\u003cli\u003e10-piece kit provides enough hardware for a full job or restocking your supply\u003c\/li\u003e\n\u003cli\u003eUniversal fit for use in engine, drivetrain, suspension, and custom fabrication applications\u003c\/li\u003e\n\u003cli\u003eManufactured to ARP's stringent quality standards with consistent dimensional accuracy\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e200-8634\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Size\u003c\/td\u003e\n\u003ctd\u003e3\/8-24 (Fine Thread)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSocket Size\u003c\/td\u003e\n\u003ctd\u003e9\/16 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eChrome Moly Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eBlack Oxide\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength\u003c\/td\u003e\n\u003ctd\u003e180,000 PSI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003e10 per kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e672036007096\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eWhat's Included\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e10x ARP 200-8634 3\/8-24 Chrome Moly Hex Nuts, Black Oxide\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\n\u003cstrong\u003eWhat thread size is the ARP 200-8634 hex nut?\u003c\/strong\u003e\n\u003cp\u003eThe ARP 200-8634 uses a 3\/8-24 fine thread pitch. Fine thread provides greater clamping force per torque increment compared to coarse thread and is the standard choice for high-performance fastener applications where precise torque control is critical.\u003c\/p\u003e\n\n\u003cstrong\u003eWhat socket size do I need to install the ARP 200-8634?\u003c\/strong\u003e\n\u003cp\u003eYou need a 9\/16-inch socket to install the ARP 200-8634 hex nuts. This is a standard size compatible with most 3\/8-inch and 1\/2-inch drive socket sets commonly found in automotive tool kits.\u003c\/p\u003e\n\n\u003cstrong\u003eWhat is the tensile strength rating of the ARP 200-8634?\u003c\/strong\u003e\n\u003cp\u003eThe ARP 200-8634 is rated to 180,000 PSI tensile strength. This rating exceeds the requirements of most performance engine, suspension, and drivetrain applications and is far superior to standard OEM or grade 5 hardware.\u003c\/p\u003e\n\n\u003cstrong\u003eWhat material are the ARP 200-8634 nuts made from?\u003c\/strong\u003e\n\u003cp\u003eThese nuts are manufactured from Chrome Moly Steel, which offers an excellent balance of high tensile strength, fatigue resistance, and machinability. Chrome Moly is widely used in motorsports and high-performance builds where standard carbon steel fasteners are insufficient.\u003c\/p\u003e\n\n\u003cstrong\u003eWhat does the black oxide finish on the ARP 200-8634 do?\u003c\/strong\u003e\n\u003cp\u003eBlack oxide provides a mild corrosion-resistant coating that reduces oxidation in low-moisture environments and gives the hardware a clean, uniform appearance. For environments with heavy exposure to moisture, additional lubrication or anti-seize is recommended.\u003c\/p\u003e\n\n\u003cstrong\u003eCan I use the ARP 200-8634 on any vehicle?\u003c\/strong\u003e\n\u003cp\u003eYes. The ARP 200-8634 is a universal hex nut kit intended for use anywhere a 3\/8-24 fine thread nut is required. Common applications include rocker arm studs, cylinder head accessories, suspension linkages, custom bracket fabrication, and general high-performance assembly work.\u003c\/p\u003e\n\n\u003cstrong\u003eHow many nuts come in the ARP 200-8634 kit?\u003c\/strong\u003e\n\u003cp\u003eEach ARP 200-8634 kit includes 10 hex nuts. This is typically sufficient for one rocker arm set on a V8 engine or a variety of other single-application jobs, with extras remaining for future use.\u003c\/p\u003e\n\n\u003cstrong\u003eAre ARP 200-8634 nuts compatible with ARP studs and bolts?\u003c\/strong\u003e\n\u003cp\u003eYes. ARP nuts are dimensionally matched to work with ARP studs and bolts using the same thread specification. Using matched ARP hardware ensures consistent thread engagement, torque accuracy, and maximum clamping load without galling or cross-threading.\u003c\/p\u003e\n\n\u003cstrong\u003eDo I need any special lubricant when installing the ARP 200-8634?\u003c\/strong\u003e\n\u003cp\u003eARP recommends using ARP Ultra-Torque fastener assembly lubricant during installation to achieve accurate torque-to-clamp-load results. Using the correct lubricant is essential for reaching and maintaining the rated clamping force specified in your application's torque specs.\u003c\/p\u003e\n\n\u003ch4\u003eInstallation Instructions\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eVerify the mating stud or bolt is the correct 3\/8-24 fine thread specification before installation.\u003c\/li\u003e\n\u003cli\u003eClean all mating threads thoroughly with a thread chaser or wire brush to remove debris, corrosion, or old thread locker.\u003c\/li\u003e\n\u003cli\u003eApply a small amount of ARP Ultra-Torque lubricant to the threads and the underside of the nut bearing surface.\u003c\/li\u003e\n\u003cli\u003eThread each ARP 200-8634 nut on by hand until finger tight to confirm there is no cross-threading.\u003c\/li\u003e\n\u003cli\u003eTorque each nut to the specification required by your application using a calibrated torque wrench and a 9\/16-inch socket.\u003c\/li\u003e\n\u003cli\u003eFollow the correct torque sequence for your application (e.g. center-out for cylinder head work) to ensure even clamping load distribution.\u003c\/li\u003e\n\u003cli\u003eRe-torque after initial heat cycling if the application involves thermal expansion, such as engine or exhaust components.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cp\u003e\u003cstrong\u003eWARNING:\u003c\/strong\u003e This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.\u003c\/p\u003e","brand":"ARP","offers":[{"title":"Default Title","offer_id":46005198585935,"sku":"ARP200-8634","price":6.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/arp-200-8634-3-8-24-hex-nut-kit-10-pack.png?v=1783011196","url":"https:\/\/www.blackopsautoworks.com\/products\/arp-200-8634-3-8-24-hex-nut-kit-10-pack","provider":"Black Ops Auto Works","version":"1.0","type":"link"}