ARP 1001414 Header Studs With Hex Nuts， Chrome Moly Steel With Black Oxide Finish， Set Of 16， For Select Ford Engines<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Premium grade stud kit to facilitate installation of exhaust headers</li><li>Rated at 170，000 PSI， which is considerably stronger than Grade 8 hardware</li><li>Studs are 3/8" in diameter and have a 1.670 overall length; 16 pieces</li><li>Manufactured from black oxide finished chrome moly steel</li><li>Nuts are traditional hex style， and premium-quality washers are included</li></ul></div><img src="http://ecx.images-amazon.com/images/I/21qjacvnl7L.jpg" noproxy>