| COUNTERBORE DIAMETER | 0.183 INCHES MINIMUM AND 0.193 INCHES MAXIMUM FIRST END |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A581 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| MATERIAL | STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 416 OR STEEL COMP 416SE OR STEEL COMP 430F OR STEEL COMP 430FSE OVERALL |
| NOMINAL THREAD SIZE | 0.164 INCHES |
| NUT COUNTERBORE DEPTH | 0.214 INCHES MINIMUM AND 0.224 INCHES MAXIMUM FIRST END |
| NUT DIAMETER | 0.309 INCHES MINIMUM AND 0.315 INCHES MAXIMUM |
| NUT HEIGHT | 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM |
| NUT STYLE | SPLINE |
| PILOT LENGTH | 0.183 INCHES MINIMUM AND 0.193 INCHES MAXIMUM |
| PILOT DIAMETER | 0.228 INCHES MINIMUM AND 0.231 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THREAD CLASS | 2B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD SERIES | UNC |
| THREAD QUANTITY PER INCH | 32 |