| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD DIAMETER | 0.5000 INCHES |
| THREAD QUANTITY PER INCH | 20 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.838 INCHES MINIMUM |
| FASTENER LENGTH | 1.473 INCHES MINIMUM AND |
| 1.503 INCHES MAXIMUM |
| MATERIAL | NICKEL ALLOY 718 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS5662 INTERNATIONAL STD/SPEC ALL MATERIAL RESPONSES OR |
| AMS5663 INTERNATIONAL STD/SPEC ALL MATERIAL RESPONSES OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS-QQ-P-416, TYPE II, CLASS 2, UP TO 450 DEG F. INTERNATIONAL STD/SPEC ALL TREATMENT RESPONSES OVERALL |
| MINIMUM TENSILE STRENGTH | 37800 POUNDS PER SQUARE INCH |
| HEAD STYLE | SPLINE EXTENDED WASHER |
| HEAD HEIGHT | 0.440 INCHES MINIMUM AND |
| 0.460 INCHES MAXIMUM |
| EXTENDED WASHER DIAMETER | 0.922 INCHES MINIMUM AND |
| 0.932 INCHES MAXIMUM |
| EXTENDED WASHER THICKNESS | 0.062 INCHES MINIMUM AND |
| 0.082 INCHES MAXIMUM |
| HEAD MINOR DIAMETER | 0.547 INCHES MINIMUM AND |
| 0.562 INCHES MAXIMUM |
| CHAMFER ANGLE | 20.0 DEGREES MAXIMUM |
| GRIP LENGTH | 0.615 INCHES MINIMUM AND |
| 0.635 INCHES MAXIMUM |
| GRIP DIAMETER | 0.4985 INCHES MINIMUM AND |
| 0.4995 INCHES MAXIMUM |
| SPECIAL FEATURES | CHEMISTRY OF AMS5662 (UNS N07718), AMS5663 (UNS N07718) OR AMS5962 (UNS N07718). ROOM TEMPERATURE TENSILE STRENGTH (LBF): MAX 44,640, MIN: 37,800 AT ROOM TEMP; 30,240 AT 800 DEG F. DOUBLE SHEAR STRENGTH LBF MIN: 49,100. |
| SPECIFICATION/STANDARD DATA | 80205-NASM14181 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT, TENSION, NICKEL ALLOY 718, 220 KSI FTU, EXTERNAL WRENCHING, SPLINE DRIVE, FLANGED HEAD |