Re: Head Bolt Nuts and Washers and Gasket

Posted by Ross On 2018/8/28 12:19:29

The washers are harder than standard and are available from industrial supply companies as "hardened washers". the nuts are 7/16-20 thread and are "extra heavy series", thus the non standard 3/4 hex for that thread size. Using one standard size nut won't kill you.