| CHAMFER ANGLE | 30.0 DEGREES NOMINAL AND 45.0 DEGREES NOMINAL |
| EXTENDED WASHER THICKNESS | 0.081 INCHES MINIMUM AND 0.101 INCHES MAXIMUM |
| EXTENDED WASHER DIAMETER | 0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM |
| FASTENER LENGTH | 1.323 INCHES MINIMUM AND 1.343 INCHES MAXIMUM |
| GRIP DIAMETER | 0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM |
| GRIP LENGTH | 0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM |
| HARDNESS RATING | |
| HEAD DIAMETER | 0.422 INCHES MINIMUM AND 0.437 INCHES MAXIMUM |
| HEAD HEIGHT | 0.378 INCHES MINIMUM AND 0.398 INCHES MAXIMUM |
| HEAD STYLE | DOUBLE HEXAGON W/HOLE |
| MATERIAL DOCUMENT AND CLASSIFICATION | |
| MATERIAL | |
| MINIMUM TENSILE STRENGTH | 17100 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.3750 INCHES |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT, TENSION, STEEL, EXTERNAL WRENCHING, FLANGED, 12-POINT, 180 KSI FTU, 450 DEG F |
| SPECIAL FEATURES | MATERIAL: ALLOY STEEL - 4140 (UNS G41400) PER AMS6382, 4340 (UNS G43406) PER AMS6415 OR AMS6484, OR 8740 (UNS G87400) PER AMS6322 AMS6325 OR AMS6327. FINISH: CADMIUM PLATE IN ACCORDANCE WITH AMS-QQ-P-416, TYPE II, CLASS 2. DOUBLE SHEAR STRENGTH: 6980 LBF MIN. SURFACE ROUGHNESS: BEARING SURFACE OF HEAD AND SHANK: 32 MICROINCHES RA; ALL OTHER SURFACES: 125 MICROINCHES RA PER ASME B46.1. |
| SPECIFICATION/STANDARD DATA | 80205-NAS-21250 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| SURFACE FINISH | UNABLE TO DECODE |
| SURFACE TREATMENT | CADMIUM OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | UNABLE TO DECODE |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.625 INCHES MINIMUM |
| THREAD QUANTITY PER INCH | 24 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |
| WIDTH BETWEEN FLATS | 0.4375 INCHES NOMINAL |