{"product_id":"12-pcs-2","title":"12 Pcs","description":"Each PROFORM 12.9 Steel (equiv. Grade 8+) Header Bolt is permanently assembled with a pair of special washers. When the bolt is torqued to 28+ ft-lbs, the washers super-hardened external teeth bite into and grip the bottom of the bolt head and the top surface of the header. After being self-locked in this manner, any bolt-loosening rotation is blocked by a wedge-locking action created by the washers interfacing, matching cams. It's an uphill climb: vibration that might ordinarily loosen the bolt actually increases the wedge-locking tension, securing the bolt even more. Because this simple wedge-locking method uses tension instead of friction, contact with oil actually facilitates the wedge effect. When changing headers, PROFORM Header Bolts can be untightened with a normal wrench, lubricated, and reused.\r\n\u003ch3\u003eAttributes:\u003c\/h3\u003e\r\n\u003cp\u003e\u003c\/p\u003e\u003cul\u003e\r\n\u003cli\u003e\n\u003cb\u003eBrand Name: \u003c\/b\u003eProform\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eGTIN: \u003c\/b\u003e00037995667543\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eApplications: \u003c\/b\u003eFits GM LS Engines with 1\/4-inch Wide Flange\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eColor: \u003c\/b\u003eNickel Plated\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eDiameter: \u003c\/b\u003e8mm\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eFeature\/Benefit: \u003c\/b\u003eWedge-Locking Technology Eliminates Constantly Re-Tightening Exhaust Collector Bolts; Blocks Bolt-Loosening Rotation caused by Vehicle Vibrations.\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eFinish: \u003c\/b\u003eNickel Plated\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eLength: \u003c\/b\u003e0.984 inch\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eMaterial: \u003c\/b\u003eSteel\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003ePart Type: \u003c\/b\u003eHeader Bolts\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003ch3\u003eExtended Information:\u003c\/h3\u003e\r\n\u003cp\u003e\u003c\/p\u003e\u003cul\u003e\r\n\u003cli\u003e\n\u003cb\u003eCountry of Origin: \u003c\/b\u003eTW\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eEmissions : \u003c\/b\u003e1\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eLife Cycle Status: \u003c\/b\u003eAvailable To Order\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003ch3\u003ePacking Information:\u003c\/h3\u003e\r\n\u003cp\u003e\u003c\/p\u003e\u003cul\u003e\r\n\u003cli\u003e\n\u003cb\u003eQuantity of Each: \u003c\/b\u003e1\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003ePackage UOM: \u003c\/b\u003eST\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eWeight: \u003c\/b\u003e0 POUNDS\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003cdiv id=\"sema-product-fitment\" class=\"product__accordion accordion fitment\"\u003e\u003c\/div\u003e","brand":"Proform","offers":[{"title":"Default Title","offer_id":44354110849069,"sku":"BCHW-66754","price":69.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0646\/2780\/2157\/files\/66754.jpg?v=1763680992","url":"https:\/\/montgomeryparts.com\/products\/12-pcs-2","provider":"Montgomery Parts","version":"1.0","type":"link"}