| HARDNESS RATING | 85.0 ROCKWELL B MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 1213 OVERALL |
| NOMINAL THREAD SIZE | 0.138 INCHES |
| NUT DIAMETER | 0.271 INCHES MINIMUM AND 0.291 INCHES MAXIMUM |
| NUT HEIGHT | 0.144 INCHES MINIMUM AND 0.165 INCHES MAXIMUM |
| NUT STYLE | CLINCH |
| PILOT LENGTH | 0.082 INCHES MINIMUM AND 0.087 INCHES MAXIMUM |
| PILOT DIAMETER | 0.180 INCHES MINIMUM AND 0.185 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 2 CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
| THREAD CLASS | 2B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 32 |
| THREAD SERIES | UNC |