| FASTENER LENGTH | 0.470 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
| HEAD DIAMETER | 0.306 INCHES MINIMUM AND 0.322 INCHES MAXIMUM |
| HEAD HEIGHT | 0.105 INCHES MINIMUM AND 0.115 INCHES MAXIMUM |
| HEAD STYLE | PAN |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE III |
| LOCKING FEATURE | PATCH |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW, MACHINE, PAN HEAD, CRUCIFORM RECESS, FULL THREAD, NON-LOCKING AND SELF-LOCKING |
| NOMINAL THREAD DIAMETER | 0.1640 INCHES |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | AUSTENITIC SERIES, NON-MAGNETIC COMPOSITION PER NAS1635 NATIONAL SPEC SINGLE MATERIAL RESPONSE |
| SCREW MATERIAL | STEEL CORROSION RESISTING |
| SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS2700, METHOD 1, CLASS 4 ASSN STD SINGLE TREATMENT RESPONSE |
| SCREW SURFACE TREATMENT | PASSIVATE |
| SPECIFICATION/STANDARD DATA | 80205-NAS1635 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.470 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 32 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |