These custom button flange socket cap screws were produced using grade 2 steel material with black oxide finish and nylon patch thread locking feature.  Full 8-32 thread was incorporated and the flange diameter was set at .357″ +/-.005″.  Head height including the flange was to be at .087″ +/-.005″ and a 3/32 socket drive was cold headed during the production process.  The blue nylon patch was applied over 180 degrees of the covered threaded section.