{"product_id":"proform-wedge-locking-header-bolts-3-8-16-thread-diameter-3-4-long-16-bolt-set","title":"Wedge-Locking Header Bolts, 3\/8\"-16 Thread Diameter, 3\/4\" Long, 16 Bolt Set","description":"\u003ch3\u003e\u003cstrong\u003eABOUT THIS PRODUCT\u003c\/strong\u003e\u003c\/h3\u003e\nPROFORM 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 sixteen 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.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eProduct Features:\u003c\/b\u003e\u003cul\u003e\n\u003cli\u003eExhaust Header Bolt\u003c\/li\u003e\n\u003cli\u003eBlack Oxide Finish\u003c\/li\u003e\n\u003cli\u003eSteel\u003c\/li\u003e\n\u003cli\u003eWedge-Locking Technology\u003c\/li\u003e\n\u003cli\u003eFits GM BB 396-502 (exc 348\/409), Ford 5.0L, SB 289-302-351W, Mopar 413\u003c\/li\u003e\n\u003cli\u003eHex Head Type\u003c\/li\u003e\n\u003cli\u003e3\/8-16 Thread, 3\/4 Inch Long\u003c\/li\u003e\n\u003cli\u003eGrade 8 (12.9) Steel\u003c\/li\u003e\n\u003cli\u003ePre-Assembled Wedge-Locking Washers\u003c\/li\u003e\n\u003cli\u003eIncludes 16 Bolts with Washers\u003c\/li\u003e\n\u003cli\u003eSold as a Set\u003c\/li\u003e\n\u003cli\u003ePROFORM Parts Brand Product\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Proform (500)","offers":[{"title":"Default Title","offer_id":52766917591316,"sku":"66752","price":37.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0699\/4214\/9396\/files\/10598412_prf_66752_pri_larg.jpg?v=1783467525","url":"https:\/\/districtmailing.com\/products\/proform-wedge-locking-header-bolts-3-8-16-thread-diameter-3-4-long-16-bolt-set","provider":"District Mailing","version":"1.0","type":"link"}