| FASTENER LENGTH | 0.780 INCHES MINIMUM AND 0.810 INCHES MAXIMUM |
| HEAD HEIGHT | 0.208 INCHES MINIMUM AND 0.230 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| MATERIAL | STEEL OVERALL |
| NOMINAL THREAD DIAMETER | 0.312 INCHES |
| PRIMARY WASHER MATERIAL THICKNESS | 0.050 INCHES NOMINAL |
| PRIMARY WASHER OUTSIDE DIAMETER | 0.618 INCHES MINIMUM AND 0.632 INCHES MAXIMUM |
| PRIMARY WASHER STYLE | SPLIT HELICAL RING |
| SPECIAL FEATURES | POINT STYLE 10 0.3026 IN. MIN,0.3112 IN. MAX DIA BY 0.090 IN. MIN,0.120 IN. MAX LG |
| WASHER QUANTITY | 1 |
| WIDTH BETWEEN FLATS | 0.491 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.565 INCHES MINIMUM AND 0.645 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNC |
| THREAD QUANTITY PER INCH | 18 |