| PROPRIETARY CHARACTERISTICS | PACS |
| MINIMUM TENSILE STRENGTH | 220000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.3125 INCHES |
| SINGLE SHEAR STRENGTH | 125000 POUNDS PER SQUARE INCH |
| SPECIFICATION/STANDARD DATA | 81205-BACB30US MANUFACTURERS STANDARD |
| WIDTH BETWEEN FLATS | 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | BMS10-85, TYPE 1, CLASS A MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | ALUMINUM OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.593 INCHES NOMINAL |
| THREAD QUANTITY PER INCH | 24 |
| THREAD SERIES DESIGNATOR | UNJF |
| COLOR | BLACK THREADS |
| EXTENDED WASHER THICKNESS | 0.040 INCHES MINIMUM AND 0.060 INCHES MAXIMUM |
| EXTENDED WASHER DIAMETER | 0.418 INCHES MINIMUM AND 0.434 INCHES MAXIMUM |
| FASTENER LENGTH | 1.7805 INCHES NOMINAL |
| GRIP DIAMETER | 0.3262 INCHES MINIMUM AND 0.3276 INCHES MAXIMUM |
| GRIP LENGTH | 1.1875 INCHES NOMINAL |
| HEAD HEIGHT | 0.280 INCHES MINIMUM AND 0.300 INCHES MAXIMUM |
| HEAD STYLE | DOUBLE HEXAGON EXTENDED WASHER |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5962 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | NICKEL ALLOY 718 OVERALL |