{"product_id":"proform-wedge-locking-header-bolts-1inl-x-3-8in-12-pieces","title":"Proform Wedge-Locking Header Bolts 1inL X 3\/8in - 12 Pieces","description":"\u003cp\u003ePROFORM 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, 1\" long) with a black oxide finish, and pre-assembled Wedge-Locking Washers.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGrade 8 (12.9) Steel\u003c\/li\u003e\n\u003cli\u003eHex Head Type\u003c\/li\u003e\n\u003cli\u003e1-inch Length\u003c\/li\u003e\n\u003cli\u003eFits GM V6, SB 265-400, Buick, Olds, Pontiac '79 and earlier, Mopar BB 383-440 exc 413, AMC V8's w 3\/8\" bolts\u003c\/li\u003e\n\u003cli\u003ePROFORM Parts Brand Product\u003c\/li\u003e\n\u003cli\u003eSold as Set of 12\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Proform","offers":[{"title":"Default Title","offer_id":47572976697640,"sku":"PF-66753","price":32.38,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/5767\/7352\/files\/proform-wedge-locking-header-bolts-1inl-x-3-8in-12-pieces-washers-nuts-543.webp?v=1716748226","url":"https:\/\/www.tegiwa.com\/products\/proform-wedge-locking-header-bolts-1inl-x-3-8in-12-pieces","provider":"Tegiwa","version":"1.0","type":"link"}