{"product_id":"wilwood-230-2589","title":"Wilwood Eight-Bolt GT\/SS\/GTL Rotor-Hat Kit, 1-Inch Socket Heads with Washers","description":"\u003cp\u003eThis rotor-to-hat kit supplies eight Grade 8 socket-head bolts and washers for the specified GT, SS and GTL mounting arrangements. The one-inch 5\/16-18 bolts are lock-wire drilled, and their taller heads require sufficient clearance in the assembled brake. The manufacturer is Wilwood Engineering, founded by Bill Wood in 1977 and based in Camarillo, California. Wilwood designs and manufactures disc brake systems and components for street-performance, specialized applications and motorsport. Its master cylinders, calipers, rotors, brake lines, valves and fittings must be chosen to work together within the complete system.\u003c\/p\u003e\u003ch3\u003eTechnical Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eManufacturer part number: 230-2589\u003c\/li\u003e\n\u003cli\u003eComponent quantity: 8 bolts\u003c\/li\u003e\n\u003cli\u003eMaterial: Alloy Steel\u003c\/li\u003e\n\u003cli\u003eGrade: Grade 8\u003c\/li\u003e\n\u003cli\u003eHead form: Socket Head\u003c\/li\u003e\n\u003cli\u003eDrive: Hex Drive\u003c\/li\u003e\n\u003cli\u003eListed fastener length: 1.000 in\u003c\/li\u003e\n\u003cli\u003eThread: 5\/16-18\u003c\/li\u003e\n\u003cli\u003eWasher type: Flat\u003c\/li\u003e\n\u003cli\u003eSafety-wire drilling: Yes\u003c\/li\u003e\n\u003cli\u003eFinish: Black Oxide\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cp\u003eWilwood's hat guidance permits this socket-head kit only where bolt-head clearance exists. For assemblies requiring the short-profile drag bolts, use the specified hardware instead; verify rotor thickness, thread depth and surrounding clearances before assembly.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.wilwood.com\/Hardware\/BoltKitProd?itemno=230-2589\"\u003eWilwood product specifications\u003c\/a\u003e · \u003ca href=\"https:\/\/www.wilwood.com\/Hats\/HatProd?itemno=170-5244\"\u003eWilwood hat hardware and bolt-head clearance guidance\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eBring the original assembly number and relevant measurements to PMB Performance for fitment assistance backed by 20+ years of experience.\u003c\/p\u003e","brand":"Wilwood","offers":[{"title":"Default Title","offer_id":67731099353266,"sku":"230-2589","price":24.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/8792\/2610\/files\/230-2589-xl.jpg?v=1792184014","url":"https:\/\/pmbperformance.com\/products\/wilwood-230-2589","provider":"PMB Performance","version":"1.0","type":"link"}