A screw, (as modified) to which has been assembled one or more nonremovable washer(s).
NSN 6240-01-029-3316
NSN 5835-00-058-0384
NSN 2925-00-278-9468
NSN 6130-01-216-7158
NSN 6105-01-658-8011
NSN 6320-01-409-1388
NSN 5905-00-141-5807
NSN 5915-01-142-3713
NSN 6130-01-197-7397
NSN 5996-00-722-0838
NSN 6105-01-217-1535
NSN 7035-01-435-7962