| COUNTERBORE DIAMETER | 0.374 INCHES MINIMUM AND 0.380 INCHES MAXIMUM FIRST END |
| COUNTERBORE DIAMETER | 0.438 INCHES MINIMUM AND 0.443 INCHES MAXIMUM SECOND END |
| COUNTERSINK ANGLE | 45.0 DEGREES NOMINAL BOTH ENDS |
| HARDNESS RATING | 207.0 BRINELL HULTGREN MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763,COND A FED SPEC 1ST MATERIAL RESPONSE OR ASTM A582,COND A ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 302 OR STEEL COMP 303 OVERALL |
| NOMINAL THREAD SIZE | 0.3125 INCHES |
| NUT COUNTERBORE DEPTH | 0.354 INCHES MINIMUM AND 0.364 INCHES MAXIMUM SECOND END |
| NUT COUNTERBORE DEPTH | 0.588 INCHES MINIMUM AND 0.603 INCHES MAXIMUM FIRST END |
| NUT DIAMETER | 0.493 INCHES MINIMUM AND 0.507 INCHES MAXIMUM |
| NUT STYLE | CLINCH |
| NUT HEIGHT | 1.062 INCHES NOMINAL |
| PILOT LENGTH | 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM |
| PILOT DIAMETER | 0.432 INCHES MINIMUM AND 0.435 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD CLASS | 2B |
| THREAD SERIES | UNF |
| THREAD QUANTITY PER INCH | 24 |