| COTTER PIN HOLE DIAMETER | 0.046 INCHES MINIMUM AND 0.056 INCHES MAXIMUM FIRST HOLE |
| DISTANCE ACROSS FLATS | 0.500 INCHES NOMINAL |
| DISTANCE FROM COTTER PIN HOLE CENTERLINE TO NUT END | 0.750 INCHES NOMINAL FIRST HOLE |
| OVERALL LENGTH | 1.282 INCHES MINIMUM AND 1.374 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6758 COND F4 MIL SPEC SINGLE MATERIAL RESPONSE |
| MATERIAL | STEEL COMP 4130 |
| NOMINAL THREAD SIZE | 0.250 INCHES NUT THREAD |
| NOMINAL THREAD SIZE | 0.250 INCHES STUD THREAD |
| NUT END SHANK LENGTH | 0.172 INCHES MINIMUM AND 0.204 INCHES MAXIMUM |
| SHOULDER LENGTH | 0.187 INCHES MINIMUM AND 0.189 INCHES MAXIMUM |
| STYLE DESIGNATOR | SHOULDERED |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 1, CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD CLASS | 3A NUT THREAD |
| THREAD CLASS | 3A STUD THREAD |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD |
| THREAD DIRECTION | RIGHT-HAND STUD THREAD |
| THREAD LENGTH | 0.437 INCHES MINIMUM AND 0.514 INCHES MAXIMUM NUT THREAD |
| THREAD LENGTH | 0.375 INCHES MINIMUM AND 0.452 INCHES MAXIMUM STUD THREAD |
| THREAD SERIES DESIGNATOR | UNF NUT THREAD |
| THREAD SERIES DESIGNATOR | UNF STUD THREAD |
| THREAD QUANTITY PER INCH | 28 NUT THREAD |
| THREAD QUANTITY PER INCH | 28 STUD THREAD |