| OVERALL HEIGHT | 0.993 INCHES MINIMUM AND 1.007 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | AISI ASSN STD ALL MATERIAL RESPONSES OVERALL |
| MATERIAL | STEEL COMP 1117 OR STEEL COMP 1137 OVERALL |
| NOMINAL THREAD SIZE | 1.250 INCHES |
| NUT STYLE | HEXAGON |
| WASHER OUTSIDE DIAMETER | 1.868 INCHES MINIMUM AND 1.882 INCHES MAXIMUM |
| WASHER THICKNESS | 0.305 INCHES MINIMUM AND 0.319 INCHES MAXIMUM |
| WIDTH ACROSS FLATS | 1.618 INCHES MINIMUM AND 1.632 INCHES MAXIMUM |
| THREAD CLASS | 2B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD SERIES | UNF |
| THREAD QUANTITY PER INCH | 12 |