| HEAD COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL |
| HEAD DIAMETER | 0.345 INCHES MINIMUM AND 0.359 INCHES MAXIMUM |
| HEAD STYLE | FLAT COUNTERSUNK |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| LUBRICATION | DRY FILM LUBRICANT |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5630 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 303 OVERALL |
| NOMINAL THREAD SIZE | 0.250 INCHES |
| NUT COUNTERBORE DEPTH | 0.350 INCHES NOMINAL NUT |
| NUT DIAMETER | 0.326 INCHES MAXIMUM |
| NUT GRIP RANGE | +0.140 TO 0.200 INCHES |
| NUT STYLE | BLIND RIVET W/SMOOTH ROUND SHANK |
| NUT LENGTH | 0.935 INCHES MINIMUM AND 0.965 INCHES MAXIMUM |
| SHANK END TYPE | CLOSED |
| SPECIAL FEATURES | THREAD LENGTH 0.411 IN.; DIAMOND PATTERN KNURLED SHANK |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES | UNIFIED NATIONAL JOINT FINE (UNJF) |