3a thread class right-hand 3.4375" overall length 0.3125" bore diameter 20 thread quantity per inch cres seal snap washer cadmium all external/exposed metal surfaces surface treated double row, staggered, ball unf thread series
3a thread class right-hand 3.8500" overall length 0.3120" bore diameter 20 thread quantity per inch chromium inner member surface treated ball type unf thread series