{"product_id":"arp-universal-header-stud-kit-hex-3-8-5-16-1-500-100-1401","title":"ARP Universal Header Stud Kit, Hex Nuts, 3\/8-5\/16 x 1.500 OAL, Set of 16 | 100-1401","description":"\u003cp\u003eThis ARP header stud kit includes sixteen studs sized 3\/8-5\/16 in diameter by 1.5 in overall length, paired with hex nuts. Studs are machined from chromoly steel and finished in black oxide for corrosion resistance. It's a universal-fit design.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eType: Header Stud Kit\u003c\/li\u003e\n\u003cli\u003eDiameter: 3\/8-5\/16 in\u003c\/li\u003e\n\u003cli\u003eLength: 1.5 in OAL\u003c\/li\u003e\n\u003cli\u003eNut Style: Hex\u003c\/li\u003e\n\u003cli\u003eMaterial: Chromoly Steel\u003c\/li\u003e\n\u003cli\u003eFinish: Black Oxide\u003c\/li\u003e\n\u003cli\u003eQuantity: Set of 16\u003c\/li\u003e\n\u003cli\u003ePart Number: 100-1401\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eUniversal\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch5\u003eWhat does \"universal\" mean for this header stud kit?\u003c\/h5\u003e\u003cp\u003eIt's not designed for one specific engine platform — the diameter and length work across a range of header installations rather than a single named application.\u003c\/p\u003e\u003ch5\u003eWhy use studs instead of bolts for headers?\u003c\/h5\u003e\u003cp\u003eStuds thread permanently into the block and use a nut to clamp the header, which distributes clamping load more evenly and reduces the risk of stripped threads from repeated bolt removal.\u003c\/p\u003e\u003ch5\u003eWhat nut style is included?\u003c\/h5\u003e\u003cp\u003eThis kit uses hex nuts.\u003c\/p\u003e\u003ch5\u003eHow many studs are included?\u003c\/h5\u003e\u003cp\u003eThis kit includes a set of 16 studs.\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What does \\\"universal\\\" mean for this header stud kit?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It's not designed for one specific engine platform — the diameter and length work across a range of header installations rather than a single named application.\"}},{\"@type\":\"Question\",\"name\":\"Why use studs instead of bolts for headers?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Studs thread permanently into the block and use a nut to clamp the header, which distributes clamping load more evenly and reduces the risk of stripped threads from repeated bolt removal.\"}},{\"@type\":\"Question\",\"name\":\"What nut style is included?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"This kit uses hex nuts.\"}},{\"@type\":\"Question\",\"name\":\"How many studs are included?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"This kit includes a set of 16 studs.\"}}]}\u003c\/script\u003e","brand":"Auto Racing Products","offers":[{"title":"Default Title","offer_id":42513184587824,"sku":"BQDN_100-1401","price":141.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/ARP100-1401.jpg?v=1761317553","url":"https:\/\/berryperformancesales.com\/products\/arp-universal-header-stud-kit-hex-3-8-5-16-1-500-100-1401","provider":"Berry Performance Sales","version":"1.0","type":"link"}