| COUNTERBORE DIAMETER | 0.186 INCHES MINIMUM AND 0.190 INCHES MAXIMUM BOSS |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A108,GRADE 1018 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 1018 OVERALL |
| NOMINAL THREAD SIZE | 0.164 INCHES |
| NUT COUNTERBORE DEPTH | 0.214 INCHES MINIMUM AND 0.224 INCHES MAXIMUM BOSS |
| 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 | 0.065 INCHES MINIMUM AND 0.095 INCHES MAXIMUM |
| PILOT DIAMETER | 0.226 INCHES MINIMUM AND 0.230 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD CLASS | 2B |
| THREAD SERIES | UNC |
| THREAD QUANTITY PER INCH | 32 |