| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD DIAMETER | 0.2500 INCHES |
| THREAD QUANTITY PER INCH | 28 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.425 INCHES NOMINAL |
| FASTENER LENGTH | 2.660 INCHES MINIMUM AND |
| 2.705 INCHES MAXIMUM |
| MATERIAL | STEEL CORROSION RESISTING OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS5731 INTERNATIONAL STD/SPEC ALL MATERIAL RESPONSES OR |
| AMS5732 INTERNATIONAL STD/SPEC ALL MATERIAL RESPONSES OVERALL |
| SURFACE TREATMENT | CADMIUM HEAD |
| CHROMIUM GRIP |
| CHROMIUM THREADS |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS-QQ-P-416, TYPE II, CLASS 2 INTERNATIONAL STD/SPEC ALL TREATMENT RESPONSES HEAD |
| AMS-QQ-C-320, CLASS 2A INTERNATIONAL STD/SPEC ALL TREATMENT RESPONSES GRIP |
| AMS-QQ-C-320, CLASS 2A INTERNATIONAL STD/SPEC ALL TREATMENT RESPONSES THREADS |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| HEAD STYLE | DISHED HEXAGON |
| HEAD HEIGHT | 0.125 INCHES MINIMUM AND |
| 0.140 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.429 INCHES MINIMUM AND |
| 0.439 INCHES MAXIMUM |
| CHAMFER ANGLE | 10.0 DEGREES NOMINAL AND |
| 20.0 DEGREES MAXIMUM |
| GRIP LENGTH | 2.115 INCHES MINIMUM AND |
| 2.135 INCHES MAXIMUM |
| GRIP DIAMETER | 0.2485 INCHES MINIMUM AND |
| 0.2495 INCHES MAXIMUM |
| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.685 INCHES NOMINAL THREADS |
| SHANK UNTHREADED HOLE DIAMETER | 0.076 INCHES MINIMUM AND |
| 0.086 INCHES MAXIMUM THREADS |
| SPECIAL FEATURES | CRES - A286 (UNS S66286) CONFORMING TO THE CHEMISTRY OF AMS5731, AMS5732, AMS5737, OR AMS5853. HEAT TREAT: AMS2759: 160 - 190 KSI FTU. ADD "E" AFTER BASIC NUMBER FOR CHROMIUM PLATED BOLTS WITH MANDATORY SHOT PEENING. SURFACES NOT CHROMIUM PLATED ARE CADMIUM PLATED. ADD "D" AFTER BASIC NUMBER FOR DRILLED SHANK BOLTS. CHROMIUM PLATE PER AMS-QQ-C-320, CLASS 2A. PLATING ON SHANK ONLY. NO PLATING ON: TOP OR SIDES OF HEAD, BEARING SURFACE OF HEAD, HEAD-TO SHANK FILLET, ADJACENT TO FILLET (WITHIN .020 MINIMUM TO .080 MAXIMUM OF LINE OF TANGENCY BETWEEN SHANK AND RADIUS R), AND THREADS EXCEPT RUNOUT MAY BE PLATED. ALL SURFACES NOT CHROMIUM PLATED SHALL BE CADMIUM PLATED PER AMS-QQ-P-416, TYPE II, CLASS 2. NON-LOCKING. UNDRILLED HEAD; DRILLED SHANK. BOLTS SHALL BE SHOT PEENED PER AMS2430. MINIMUM AREAS TO BE SHOT PEENED: BEARING SURFACE OF HEAD, HEAD-TO-SHANK FILLET, SHANK, AND THREAD RUNOUT. |
| SPECIFICATION/STANDARD DATA | 80205-NAS6703 THRU NAS6720 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT, TENSION, HEX HEAD, CLOSE TOLERANCE, A286 CRES, LONG THREAD, REDUCED MAJOR THREAD DIA., SELF-LOCKING AND NONLOCKING, 160 KSI FTU |
| HAZARDOUS SUBSTANCES | CADMIUM AND |
| CHROMIUM |