{"product_id":"mr-gasket-header-bolt-set-allen-head-3-8-16-x-3-4-inch","title":"Mr. Gasket Header Bolt Set - Allen Head 3\/8-16 x 3\/4 Inch","description":"When installing headers you will need header bolts, factory exhaust manifold bolts won't work. These Mr. Gasket Header Bolts are Grade 5 for strength and black oxide coated. If you've ever had a set of headers where a socket just seemed it wouldn't fit these might be your answer. These bolts also have a socket head or Allen key drive in the center for just that problem. Sold as a set of 12 Fits: AMC 290-401 Chevrolet Small Block 262-400 Chrysler Big Block 383-440 (Does not Fit 426 Hemi) Pontiac 326-455 Oldsmobile 330-455","brand":"Mr Gasket","offers":[{"title":"Default Title","offer_id":67892083359838,"sku":"BCZG_916","price":24.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/8428\/8094\/files\/7144b8060054e67e5286ddcbb21ff5d8.jpg?v=1793389809","url":"https:\/\/atlasautopartsstore.com\/products\/mr-gasket-header-bolt-set-allen-head-3-8-16-x-3-4-inch","provider":"Atlas Auto Parts","version":"1.0","type":"link"}