| BEARING SURFACE TYPE | CHAMFERED |
| COUNTERSINK ANGLE | 88.0 DEGREES NOMINAL FIRST END |
| LOCKING FEATURE | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| MATERIAL | PLASTIC POLYAMIDE NYLON LOCKING INSERT |
| MATERIAL | STEEL COMP 1137 OVERALL EXCEPT INSERT |
| NOMINAL THREAD SIZE | 1.000 INCHES |
| NUT HEIGHT | 1.010 INCHES MINIMUM AND 1.141 INCHES MAXIMUM |
| NUT STYLE | HEXAGON |
| WIDTH ACROSS FLATS | 1.427 INCHES MINIMUM AND 1.440 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM B633 ASSN STD SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT |
| SURFACE TREATMENT | ZINC OVERALL EXCEPT INSERT |
| TEMP RATING | 250.0 FAHRENHEIT NOMINAL |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 8 |
| THREAD SERIES | UNIFIED NATIONAL COARSE (UNC) |