| THREAD SERIES | UNJF |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| MATERIAL | STEEL COMP 1035 OVERALL OR STEEL COMP 1042 OVERALL OR STEEL COMP 1050 OVERALL OR STEEL COMP 1137 OVERALL OR STEEL COMP XM-13 OVERALL OR STEEL COMP 4027 OVERALL OR STEEL COMP 4037 OVERALL OR STEEL COMP 8740 OVERALL |
| PROPRIETARY CHARACTERISTICS | PACS |
| NOMINAL THREAD SIZE | 1.000 INCHES |
| NUT STYLE | CASTELLATED HEXAGON |
| OVERALL HEIGHT | 0.985 INCHES MINIMUM AND 1.015 INCHES MAXIMUM |
| WASHER OUTSIDE DIAMETER | 1.345 INCHES MAXIMUM |
| WASHER THICKNESS | 0.120 INCHES NOMINAL |
| WIDTH ACROSS FLATS | 1.115 INCHES MINIMUM AND 1.132 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| TEMP RATING | 450.0 DEG FAHRENHEIT NOMINAL |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 12 |