| COTTER PIN HOLE DIAMETER | 0.077 INCHES MINIMUM AND 0.082 INCHES MAXIMUM FIRST HOLE |
| DIAMETER OF RECESSED PORTION OF SHANK | 0.186 INCHES MINIMUM AND 0.196 INCHES MAXIMUM |
| DISTANCE FROM COTTER PIN HOLE CENTERLINE TO NUT END | 0.323 INCHES NOMINAL FIRST HOLE |
| LENGTH OF RECESSED PORTION OF SHANK | 0.070 INCHES NOMINAL |
| OVERALL LENGTH | 1.640 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-T-570,CLASS S1 FED SPEC SINGLE MATERIAL RESPONSE |
| MATERIAL | STEEL |
| NOMINAL THREAD SIZE | 0.250 INCHES STUD THREAD |
| STYLE DESIGNATOR | RECESSED |
| THREAD CLASS | 3A NUT THREAD |
| THREAD CLASS | 3A STUD THREAD |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD |
| THREAD DIRECTION | RIGHT-HAND STUD THREAD |
| THREAD LENGTH | 0.230 INCHES NOMINAL STUD THREAD |
| THREAD LENGTH | 0.690 INCHES NOMINAL NUT THREAD |
| THREAD QUANTITY PER INCH | 28 STUD THREAD |
| THREAD SERIES DESIGNATOR | UNF STUD THREAD |