| PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT,12 POINT HEAD,220 KSI MIN TENSILE,125 KSI MIN SHEAR,NICKEL ALLOY 718(NOMINAL AND OVERSIZE) |
| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD DIAMETER | 0.500 INCHES |
| THREAD QUANTITY PER INCH | 20 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.813 INCHES NOMINAL |
| FASTENER LENGTH | 2.2355 INCHES MINIMUM AND |
| 2.2655 INCHES MAXIMUM |
| MATERIAL | NICKEL ALLOY 718 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS5662 OR 5962 NATIONAL STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | ALUMINUM OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ALUMINUM PIGMENTED COATING IAW BMS10-85,TYPE I MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| COLOR | BLACK THREADS |
| MINIMUM TENSILE STRENGTH | 220000 POUNDS PER SQUARE INCH |
| SINGLE SHEAR STRENGTH | 125000 POUNDS PER SQUARE INCH |
| HEAD STYLE | DOUBLE HEXAGON EXTENDED WASHER |
| HEAD HEIGHT | 0.420 INCHES MINIMUM AND |
| 0.440 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.637 INCHES MINIMUM AND |
| 0.651 INCHES MAXIMUM |
| EXTENDED WASHER DIAMETER | 0.818 INCHES MINIMUM AND |
| 0.828 INCHES MAXIMUM |
| EXTENDED WASHER THICKNESS | 0.113 INCHES MINIMUM AND |
| 0.133 INCHES MAXIMUM |
| GRIP LENGTH | 1.4275 INCHES MINIMUM AND |
| 1.4475 INCHES MAXIMUM |
| GRIP DIAMETER | 0.4981 INCHES MINIMUM AND |
| 0.4995 INCHES MAXIMUM |
| SURFACE FINISH | 32.0 MICROINCHES HEAD |
| 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| 32.0 MICROINCHES GRIP |
| 32.0 MICROINCHES THREADS |
| SPECIAL FEATURES | ITEM IS FAA CERTIFIED |
| SPECIFICATION/STANDARD DATA | 81205-BACB30US MANUFACTURERS STANDARD |