| CHAMFER ANGLE | 30.0 DEGREES MINIMUM AND 45.0 DEGREES MAXIMUM |
| FASTENER LENGTH | 3.345 INCHES MINIMUM AND 3.375 INCHES MAXIMUM |
| HEAD DIAMETER | 0.977 INCHES MINIMUM AND 1.000 INCHES MAXIMUM |
| HEAD HEIGHT | 0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
| HEAD STYLE | FLAT CHAMFER |
| INTERNAL DRIVE STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | UNABLE TO DECODE |
| MATERIAL | |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW, SHOULDER, SOCKET HEAD, HEXAGON ALLOY STEEL OR NONFERROUS ALLOYS, UNC-3A |
| NOMINAL THREAD DIAMETER | 0.6250 INCHES |
| SHOULDER DIAMETER | |
| SHOULDER SHAPE | UNABLE TO DECODE |
| SHOULDER LENGTH | |
| SPECIFICATION/STANDARD DATA | 80205-NAS-51975 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | UNABLE TO DECODE |
| SURFACE TREATMENT | UNABLE TO DECODE |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.845 INCHES MINIMUM AND 0.875 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 11 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |
| WIDTH ACROSS FLATS | 0.375 INCHES NOMINAL |