| MATERIAL | STEEL |
| STYLE DESIGNATOR | STEPPED |
| SHANK DIAMETER | 0.223 INCHES MINIMUM AND |
| 0.227 INCHES MAXIMUM |
| OVERALL LENGTH | 1.080 INCHES MINIMUM AND |
| 1.120 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNS NUT THREAD |
| NOMINAL THREAD SIZE | 0.250 INCHES NUT THREAD |
| THREAD QUANTITY PER INCH | 20 NUT THREAD |
| THREAD PITCH DIAMETERS | 0.2246 TO 0.2263 INCHES NUT THREAD |
| 0.2809 TO 0.2829 INCHES STUD THREAD |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD |
| RIGHT-HAND STUD THREAD |
| THREAD LENGTH | 0.440 INCHES MINIMUM AND |
| 0.580 INCHES MAXIMUM NUT THREAD |
| 0.430 INCHES MINIMUM AND |
| 0.470 INCHES MAXIMUM STUD THREAD |
| HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND |
| 32.0 ROCKWELL C MAXIMUM |
| DISTANCE FROM COTTER PIN HOLE CENTERLINE TO NUT END | 0.110 INCHES NOMINAL FIRST HOLE |
| COTTER PIN HOLE DIAMETER | 0.065 INCHES MINIMUM AND |
| 0.072 INCHES MAXIMUM FIRST HOLE |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |