| THREAD SERIES | UNJF |
| NOMINAL THREAD SIZE | 0.438 INCHES |
| THREAD QUANTITY PER INCH | 20 |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| MATERIAL | STEEL COMP 304 OR |
| STEEL COMP 305 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763,COND A FED SPEC ALL MATERIAL RESPONSES OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| CADMIUM AND |
| CHROMATE OVERALL EXCEPT THREADS |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT THREADS |
| NUT STYLE | BLIND RIVET W/SMOOTH ROUND SHANK |
| NUT DIAMETER | 0.537 INCHES MINIMUM AND |
| 0.539 INCHES MAXIMUM |
| NUT LENGTH | 1.038 INCHES MAXIMUM |
| NUT GRIP RANGE | 0.280 TO 0.340 INCHES |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| LUBRICATION | DRY FILM LUBRICANT |
| HEAD STYLE | ELIPTICAL COUNTERSUNK |
| HEAD HEIGHT | 0.054 INCHES NOMINAL |
| HEAD MAJOR DIAMETER | 0.704 INCHES MINIMUM AND |
| 0.708 INCHES MAXIMUM |
| HEAD MINOR DIAMETER | 0.598 INCHES MINIMUM AND |
| 0.602 INCHES MAXIMUM |
| 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 |
| SHANK END TYPE | OPEN |
| TEMP RATING | 450.0 DEG FAHRENHEIT MAXIMUM |
| SPECIFICATION/STANDARD DATA | 80205-NAS1734 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |