{"product_id":"3-8-16-x-3-4-header-bolt-set-12-combo-hex-soc","title":"Header Bolts 3\/8-16 x 3\/4 Inch Hex \u0026 Socket Head Black Oxide Fits AMC 290-401, Chevrolet Small Block 262-400, Chrysler 383-440 except Hemi, Pontiac 326-455, Oldsmobile 330-455 Mr Gasket","description":"\u003cp\u003e\u003cb\u003ePart #:\u003c\/b\u003e 3420G\u003c\/p\u003e\u003cp\u003eWhen installing headers you will need header bolts, factory exhaust manifold bolts won't work. These Mr. Gasket Header Bolts are Grade 5 for strength, black oxide coated, and have a hex head that is ideal for use where space is minimal - your typical header flanges. Ever had a set of headers where a socket just seemed it wouldn't fit  These bolts also have a socket head or Allen key drive in the center for just that problem.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMade From High Strength Steel\u003c\/li\u003e\n\u003cli\u003eCorrosion Resistant Black Coating\u003c\/li\u003e\n\u003cli\u003eHas Both Socket And Hex Heads For Ease Of Use\u003c\/li\u003e\n\u003cli\u003e12 per Package\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eHeader Bolt - 3\/8-16 in Thread - 0.750 in Long - Hex \/ Allen Head - Steel - Black Oxide - AMC V8 \/ GM V8 \/ Mopar B \/ RB-Series - Set of 12\u003c\/p\u003e","brand":"Mr. Gasket","offers":[{"title":"Default Title","offer_id":51827556352312,"sku":"M00S 3420G","price":202.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/horsepower-asset-521670-962830-square_9c323972-4325-422e-a1e6-24c9da6b5818.webp?v=1774557830","url":"https:\/\/store.motormia.co\/products\/3-8-16-x-3-4-header-bolt-set-12-combo-hex-soc","provider":"MOTORMIA","version":"1.0","type":"link"}