{"product_id":"atomic-barra-tool-steel-headstuds","title":"Atomic Barra Tool Steel Headstuds","description":"\u003cdiv class=\"atomic-section\"\u003e\n\u003cdiv class=\"atomic-grid\"\u003e\n\u003cdiv\u003e\n\u003ch2\u003eWhy Pay 3x More for the Same Strength?\u003c\/h2\u003e\n\u003cp\u003eIn the world of high-horsepower fasteners, you typically have two choices: standard chromoly studs (good for ~800hp) or exotic super-alloy studs like Custom Age 625+ (good for 2000hp+, but with an eye-watering price tag). For most serious Barra builds, the standard stud is too weak, but the 625+ is overkill on the wallet.\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cstrong\u003e💡 DID YOU KNOW?\u003c\/strong\u003e\n\u003cp\u003e\u003cstrong\u003eH13 Tool Steel matches CA625 strength.\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eOur H13 studs are rated to ~270,000 psi tensile strength—effectively identical to the ~260-280k psi rating of ARP CA625+ studs. The difference? You can buy an Atomic kit for nearly\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eone-third of the price\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eThe Atomic Solution\u003c\/h2\u003e\n\u003cp\u003eWe filled the gap in the market by manufacturing our studs from\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eH13 Tool Steel\u003c\/strong\u003e. To guarantee maximum fatigue resistance, our threads are\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ecold-rolled\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003erather than cut, and the entire stud undergoes a specialized\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eheat-treatment\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eprocess to lock in superior structural integrity. This material offers exceptional thermal stability and tensile strength, making it perfect for high-boost applications where head lift is a constant threat. Plus, we added features usually reserved for the most expensive kits, like external hex drives for easy installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0587\/5548\/1713\/files\/Atomic_SOHC_INTECH_Tool_Steel_Headstud_Kit.png?v=1746748863\" alt=\"H13 Tool Steel headstuds\"\u003e\u003cbr\u003e\n\u003cdiv class=\"img-caption\"\u003eHeat-treated H13 Tool Steel: The Goldilocks of Fasteners.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"atomic-section\"\u003e\n\u003cdiv class=\"atomic-grid\"\u003e\n\u003cdiv\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0587\/5548\/1713\/files\/atomic_barra_H13_tool_steel_head_studs.jpg?v=1756800407\" alt=\"Atomic Barra Tool Steel Headstuds with OS Washers\"\u003e\u003cbr\u003e\n\u003cdiv class=\"img-caption\"\u003eExternal 8mm Hex for easy install\/removal.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch2\u003e2. Mechanic-Friendly Features\u003c\/h2\u003e\n\u003cp\u003eWe build engines, so we know the frustration of installing studs with only an Allen key slot. We fixed that.\u003c\/p\u003e\n\u003cul class=\"atomic-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e8mm External Hex Tip:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEvery stud features a machined hex tip, allowing you to easily wind them into the block by hand or with a socket. No more double-nutting or struggling with Allen keys.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOversized Washers:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIncluded in our premium kits, these spread the immense clamping load over a wider area of the alloy head, preventing the washer from crushing into the soft aluminium under high torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Replacement:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDesigned to be a drop-in upgrade for the factory M12 head bolts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"atomic-section\"\u003e\n\u003ch2\u003eHead Stud Comparison\u003c\/h2\u003e\n\u003ctable class=\"atomic-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eGrade \/ Material\u003c\/th\u003e\n\u003cth\u003eTensile Strength (PSI)\u003c\/th\u003e\n\u003cth\u003ePrice Bracket\u003c\/th\u003e\n\u003cth\u003eKey Characteristics\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAtomic H13 Tool Steel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e~270,000+\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e$$ (Best Value)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eStronger than L19 and ARP2000.\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eExcellent thermal stability.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eARP 2000\u003c\/td\u003e\n\u003ctd\u003e~220,000\u003c\/td\u003e\n\u003ctd\u003e$$\u003c\/td\u003e\n\u003ctd\u003eIndustry standard. Good all-rounder but can stretch under extreme boost.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCustom Age 625+\u003c\/td\u003e\n\u003ctd\u003e~260,000 – 280,000\u003c\/td\u003e\n\u003ctd\u003e$$$$$ (Extreme)\u003c\/td\u003e\n\u003ctd\u003eSuper-alloy. Extremely strong but typically costs 3-4x more.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"Atomic","offers":[{"title":"12mm Studs- Std Size Washers","offer_id":46869880537246,"sku":null,"price":567.97,"currency_code":"AUD","in_stock":true},{"title":"12mm Studs- OS Washers (most popular)","offer_id":46869880570014,"sku":null,"price":598.63,"currency_code":"AUD","in_stock":true},{"title":"14mm Studs- OS Washers","offer_id":46869880602782,"sku":null,"price":680.39,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0323\/6482\/2661\/files\/Atomic_Barra_Tool_Steel_Headstuds_with_OS_Washers_2000x_67e8172a-fa2f-41ad-892b-e8fbe675a359.jpg?v=1779518552","url":"https:\/\/www.performanceheaven.com.au\/products\/atomic-barra-tool-steel-headstuds","provider":"performanceheaven","version":"1.0","type":"link"}