| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.053 INCHES MINIMUM AND 1.073 INCHES MAXIMUM FIRST HOLE |
| FASTENER LENGTH | 1.060 INCHES MINIMUM AND 1.080 INCHES MAXIMUM |
| HARDNESS RATING | 43.0 ROCKWELL C MINIMUM AND 47.0 ROCKWELL C MAXIMUM FASTENER |
| HARDNESS RATING | 50.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM LOCKING FEATURE |
| HEAD DIAMETER | 0.449 INCHES MINIMUM AND 0.507 INCHES MAXIMUM |
| HEAD STYLE | FLAT COUNTERSUNK |
| INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) |
| LOCKING FEATURE | DETENT BALL THREADS |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5629 PH13-8 ASSN STD SINGLE MATERIAL RESPONSE FASTENER |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE LOCKING FEATURE |
| MATERIAL | STEEL COMP 440C LOCKING FEATURE |
| MATERIAL | STEEL COMP 631 SPRING |
| MATERIAL | STEEL COMP XM-13 FASTENER |
| MINIMUM YIELD STRENGTH | 63000 POUNDS PER SQUARE INCH |
| MINIMUM TENSILE STRENGTH | 90000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.190 INCHES |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
| SHANK UNTHREADED HOLE DIAMETER | 0.076 INCHES MINIMUM AND 0.086 INCHES MAXIMUM FIRST HOLE |
| SPECIAL FEATURES | PLUNGER DRY FILM PER MIL-L-46010,ROCKWELL HARDNESS 43.0 TO 47.0: PH13-8MO PER AMS 5629 |
| SURFACE FINISH | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| SURFACE FINISH | 32.0 MICROINCHES GRIP |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD CLASS | 3A |
| THREAD LENGTH | 0.356 INCHES MINIMUM AND 0.392 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNJF |
| THREAD QUANTITY PER INCH | 32 |