{"product_id":"arp-header-nut-5-16-24-thread-3-8-in-12-point-head-large-flange-chromoly-agn12-5cl","title":"ARP Header Nut, 5\/16-24 Thread, 3\/8 in 12-Point Head, Large Flange, Chromoly | AGN12-5CL","description":"\u003cp\u003eThis ARP header nut features a large flange head for extra clamping surface, a 5\/16-24 thread, and a 3\/8in 12-point head for wrench access in tight header collector areas. It's machined from chromoly steel with a black oxide finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e5\/16-24 in Thread\u003c\/li\u003e\n\u003cli\u003e3\/8 in 12-Point Head\u003c\/li\u003e\n\u003cli\u003eLarge Flange\u003c\/li\u003e\n\u003cli\u003eChromoly Construction\u003c\/li\u003e\n\u003cli\u003eBlack Oxide Finish\u003c\/li\u003e\n\u003cli\u003eSold Each\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch5\u003eWhat thread does this nut have?\u003c\/h5\u003e\u003cp\u003eIt has a 5\/16-24 thread.\u003c\/p\u003e\u003ch5\u003eWhat size is the head?\u003c\/h5\u003e\u003cp\u003eIt has a 3\/8in 12-point head.\u003c\/p\u003e\u003ch5\u003eWhat makes it a 'large flange' nut?\u003c\/h5\u003e\u003cp\u003eIt has an enlarged flange for extra clamping surface area.\u003c\/p\u003e\u003ch5\u003eWhat is it made of?\u003c\/h5\u003e\u003cp\u003eIt's machined from chromoly steel with a black oxide finish.\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What thread does this nut have?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It has a 5\/16-24 thread.\"}},{\"@type\":\"Question\",\"name\":\"What size is the head?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It has a 3\/8in 12-point head.\"}},{\"@type\":\"Question\",\"name\":\"What makes it a 'large flange' nut?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It has an enlarged flange for extra clamping surface area.\"}},{\"@type\":\"Question\",\"name\":\"What is it made of?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It's machined from chromoly steel with a black oxide finish.\"}}]}\u003c\/script\u003e","brand":"Auto Racing Products","offers":[{"title":"Default Title","offer_id":42529601585200,"sku":"BQDN_AGN12-5CL","price":3.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/ARPAGN12-5CL.jpg?v=1761966791","url":"https:\/\/berryperformancesales.com\/products\/arp-header-nut-5-16-24-thread-3-8-in-12-point-head-large-flange-chromoly-agn12-5cl","provider":"Berry Performance Sales","version":"1.0","type":"link"}