| HEAD HEIGHT | 0.080 INCHES NOMINAL |
| HEAD MAJOR COUNTERSINK ANGLE | 75.75 DEGREES MINIMUM AND 76.25 DEGREES MAXIMUM |
| HEAD MINOR COUNTERSINK ANGLE | 59.75 DEGREES MINIMUM AND 60.25 DEGREES MAXIMUM |
| HEAD MINOR DIAMETER | 0.444 INCHES MINIMUM AND 0.448 INCHES MAXIMUM |
| HEAD STYLE | ELIPTICAL COUNTERSUNK |
| HEAD MAJOR DIAMETER | 0.518 INCHES MINIMUM AND 0.522 INCHES MAXIMUM |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| MATERIAL | STEEL COMP 304 OR STEEL COMP 305 OVERALL |
| NOMINAL THREAD SIZE | 0.312 INCHES |
| NUT DIAMETER | 0.394 INCHES MINIMUM AND 0.396 INCHES MAXIMUM |
| NUT GRIP RANGE | +0.740 TO 0.820 INCHES |
| NUT LENGTH | 1.288 INCHES MAXIMUM |
| NUT STYLE | BLIND RIVET W/SMOOTH ROUND SHANK |
| SHANK END TYPE | OPEN |
| TEMP RATING | 450.0 FAHRENHEIT MAXIMUM |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 24 |
| THREAD SERIES | UNF |