{"product_id":"exhaust-header-bolt-2","title":"Proform 66827 Exhaust Header Bolt","description":"PROFORM Wedge-Locking Header Bolts ELIMINATE the need to constantly re-tighten collector bolts, and without the need for clips, pins, racing-wire, chemicals or gunk. The secret is in the Wedge-Locking Washer's super-hardened external teeth that \"bite\" into the bottom of the bolt head and the top flange surface. Vibrations that normally cause other bolts to loosen, are blocked by the wedge-locking action that uses tension, instead of friction to stay snug. In fact, contact with oil actually facilitates the effect. Installs\/uninstalls with a normal wrench, lubricate, and then reuse. Each set comes with twelve Hex Head, Grade 8 (12.9) steel bolts (3\/8\"-16 thread, 3\/4\" long) with a black oxide finish, and pre-assembled Wedge-Locking Washers.","brand":"Proform","offers":[{"title":"Default Title","offer_id":51181183435067,"sku":"BCHW_66827","price":55.98,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/5958\/2011\/files\/b44036f3d298b_687d3190-ce93-4a84-82c9-ce9597ebca11.jpg?v=1776502762","url":"https:\/\/performancepartscanada.ca\/products\/exhaust-header-bolt-2","provider":"Performance Parts Canada","version":"1.0","type":"link"}