| MATERIAL | STEEL COMP 4640 |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS ASSN STD SINGLE MATERIAL RESPONSE |
| STYLE DESIGNATOR | STEPPED |
| SHANK DIAMETER | 0.285 INCHES MINIMUM AND |
| 0.289 INCHES MAXIMUM |
| OVERALL LENGTH | 1.840 INCHES MINIMUM AND |
| 1.880 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNF NUT THREAD |
| UNS STUD THREAD |
| NOMINAL THREAD SIZE | 0.375 INCHES NUT THREAD |
| 0.438 INCHES STUD THREAD |
| THREAD CLASS | 3A NUT THREAD |
| THREAD QUANTITY PER INCH | 24 NUT THREAD |
| 14 STUD THREAD |
| THREAD PITCH DIAMETERS | 0.4063 TO 0.4095 INCHES STUD THREAD |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD |
| RIGHT-HAND STUD THREAD |
| THREAD LENGTH | 0.620 INCHES MAXIMUM NUT THREAD |
| 0.760 INCHES MINIMUM AND |
| 0.790 INCHES MAXIMUM STUD THREAD |
| SPECIAL FEATURES | STUD 0.012 IN. OVERSIZE |
| HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND |
| 32.0 ROCKWELL C MAXIMUM |
| DISTANCE FROM COTTER PIN HOLE CENTERLINE TO NUT END | 0.140 INCHES NOMINAL FIRST HOLE |
| COTTER PIN HOLE DIAMETER | 0.065 INCHES MINIMUM AND |
| 0.072 INCHES MAXIMUM FIRST HOLE |