| COTTER PIN HOLE DIAMETER | 0.070 INCHES MINIMUM FIRST HOLE |
| COTTER PIN HOLE DIAMETER | 0.080 INCHES MAXIMUM SECOND HOLE |
| DISTANCE ACROSS FLATS | 0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM |
| DISTANCE FROM COTTER PIN HOLE CENTERLINE TO NUT END | 0.110 INCHES NOMINAL FIRST HOLE |
| HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| OVERALL LENGTH | 2.768 INCHES MINIMUM AND 2.784 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | EMS85010,GENERAL MOTORS CORP MFR REF SINGLE MATERIAL RESPONSE |
| MATERIAL | STEEL |
| NOMINAL THREAD SIZE | 0.250 INCHES STUD THREAD |
| NOMINAL THREAD SIZE | 0.375 INCHES NUT THREAD |
| NUT END SHANK LENGTH | 1.047 INCHES MINIMUM AND 1.077 INCHES MAXIMUM |
| NUT END SHANK DIAMETER | 0.371 INCHES NOMINAL |
| SHOULDER LENGTH | 0.450 INCHES NOMINAL |
| STYLE DESIGNATOR | SHOULDERED AND STEPPED |
| SURFACE FINISH | 63.0 MICROINCHES OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD |
| THREAD DIRECTION | RIGHT-HAND STUD THREAD |
| THREAD CLASS | 3A NUT THREAD |
| THREAD CLASS | 3A STUD THREAD |
| THREAD LENGTH | 0.600 INCHES MINIMUM AND 0.630 INCHES MAXIMUM STUD THREAD |
| THREAD LENGTH | 0.611 INCHES MINIMUM AND 0.687 INCHES MAXIMUM NUT THREAD |
| THREAD SERIES DESIGNATOR | UNF NUT THREAD |
| THREAD SERIES DESIGNATOR | UNF STUD THREAD |
| THREAD QUANTITY PER INCH | 24 NUT THREAD |
| THREAD QUANTITY PER INCH | 28 STUD THREAD |