ARP 4001209 Header Bolts With 12-Point Heads， Polished Stainless Steel， Set Of 12<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Premium grade bolt kit to facilitate installation of exhaust headers</li><li>Rated at 170，000 PSI， which is considerably stronger than Grade 8 hardware</li><li>Bolts are 3/8" in diameter and have a 1.000 under head length; 12 pieces</li><li>Manufactured from polished Stainless 300 steel， a proprietary alloy that is impervious to rust and corrosion</li><li>Heads are compact 12-point style， and premium-quality washers are included</li></ul></div><img src="http://ecx.images-amazon.com/images/I/5125IN-YI1L.jpg" noproxy>