| CHAMFER ANGLE | 30.0 DEGREES MINIMUM AND 45.0 DEGREES MAXIMUM |
| FASTENER LENGTH | 1.500 INCHES NOMINAL |
| HEAD DIAMETER | 0.550 INCHES MINIMUM AND 0.562 INCHES MAXIMUM |
| HEAD HEIGHT | 0.368 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| HEAD STYLE | FLAT CHAMFER |
| HOLE CONFIGURATION STYLE | ROUND INTERNAL HEXAGON |
| HOLE DIAMETER | 0.061 INCHES MINIMUM AND 0.067 INCHES MAXIMUM |
| HOLE QUANTITY | 6 |
| HOLE TYPE | DRILLED |
| INTERNAL DRIVE STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | UNABLE TO DECODE |
| MATERIAL | UNABLE TO DECODE |
| MINIMUM TENSILE STRENGTH | 180000 POUNDS PER SQUARE INCH |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW,CAP,SOCKET HEAD,UNDRILLED AND DRILLED,PLAIN AND SELF-LOCKING,ALLOY STEEL,CORROSION-RESISTANT STEEL AND HEAT-RESISTANT STEEL,UNRF-3A |
| NOMINAL THREAD DIAMETER | 0.3750 INCHES |
| SPECIAL FEATURES | MINIMUM BREAKING STRENGTH 7,020 LBF |
| SPECIFICATION/STANDARD DATA | 80205-NAS1351 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 | 1.250 INCHES MINIMUM |
| THREAD QUANTITY PER INCH | 24 |
| THREAD SERIES DESIGNATOR | UNRF |
| WIDTH ACROSS FLATS | 0.312 INCHES NOMINAL |