| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD DIAMETER | 0.2500 INCHES |
| THREAD QUANTITY PER INCH | 28 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.495 INCHES MINIMUM |
| FASTENER LENGTH | 1.380 INCHES MINIMUM AND |
| 1.410 INCHES MAXIMUM |
| MATERIAL | NICKEL ALLOY 718 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS5662,5663 OR AMS5962 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS2700,METHOD 1,TY 2 OR 8,CL 4 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| MINIMUM TENSILE STRENGTH | 220000 POUNDS PER SQUARE INCH |
| HEAD STYLE | SPLINE EXTENDED WASHER |
| HEAD HEIGHT | 0.240 INCHES MINIMUM AND |
| 0.260 INCHES MAXIMUM |
| EXTENDED WASHER DIAMETER | 0.460 INCHES MINIMUM AND |
| 0.470 INCHES MAXIMUM |
| EXTENDED WASHER THICKNESS | 0.026 INCHES MINIMUM AND |
| 0.046 INCHES MAXIMUM |
| HEAD MINOR DIAMETER | 0.235 INCHES MINIMUM AND |
| 0.250 INCHES MAXIMUM |
| HOLE CONFIGURATION STYLE | SPLINE |
| HOLE TYPE | DRILLED |
| HOLE QUANTITY | 4 |
| HOLE DIAMETER | 0.032 INCHES MINIMUM AND |
| 0.042 INCHES MAXIMUM |
| GRIP LENGTH | 0.865 INCHES MINIMUM AND |
| 0.885 INCHES MAXIMUM |
| GRIP DIAMETER | 0.2485 INCHES MINIMUM AND |
| 0.2495 INCHES MAXIMUM |
| SURFACE FINISH | 32.0 MICROINCHES OVERALL |
| 125.0 MICROINCHES ALL HOLES |
| SPECIAL FEATURES | TENSILE STRENGTH AT ROOM TEMP,LBF IS 8,540 MIN AND 10,080 MAX;DOUBLE SHEAR STRENGTH LBF MIN IS 12,300;STRESS RUPTURE AT 800 DEG F LBF IS 4,780 |
| 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 |