| EXTENDED WASHER THICKNESS | 0.280 INCHES MINIMUM AND 0.290 INCHES MAXIMUM |
| EXTENDED WASHER DIAMETER | 1.500 INCHES NOMINAL |
| FASTENER LENGTH | 3.920 INCHES NOMINAL |
| HARDNESS RATING | 50.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD HEIGHT | 0.550 INCHES NOMINAL |
| HEAD STYLE | HEXAGON EXTENDED WASHER |
| INTERNAL THREAD CLASS | 3B CONCENTRIC HOLE |
| INTERNAL THREAD DIRECTION | RIGHT-HAND CONCENTRIC HOLE |
| INTERNAL THREAD LENGTH | 2.060 INCHES MINIMUM AND 2.100 INCHES MAXIMUM CONCENTRIC HOLE |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP H11 OVERALL |
| NOMINAL THREAD SIZE | 0.812 INCHES CONCENTRIC HOLE |
| NOMINAL THREAD DIAMETER | 0.750 INCHES |
| SHOULDER DIAMETER | 1.072 INCHES MINIMUM AND 1.074 INCHES MAXIMUM |
| SHOULDER LENGTH | 1.930 INCHES NOMINAL |
| STYLE DESIGNATOR | CONCENTRIC HOLE THREADED |
| WIDTH BETWEEN FLATS | 1.125 INCHES NOMINAL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD CLASS | 3A |
| THREAD LENGTH | 0.960 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNJF |
| THREAD SERIES | UN CONCENTRIC HOLE |
| THREAD QUANTITY PER INCH | 16 |
| THREADS PER INCH | 16 CONCENTRIC HOLE |