| MATERIAL | STEEL COMP 4140 |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS A322 ASSN STD SINGLE MATERIAL RESPONSE OR |
| AMS A331 ASSN STD SINGLE MATERIAL RESPONSE |
| OVERALL LENGTH | 4.812 INCHES NOMINAL |
| THREAD SERIES DESIGNATOR | UNF NUT THREAD |
| UNS STUD THREAD |
| NOMINAL THREAD SIZE | 0.625 INCHES NUT THREAD |
| 0.625 INCHES STUD THREAD |
| THREAD CLASS | 3A NUT THREAD |
| THREAD QUANTITY PER INCH | 18 NUT THREAD |
| 11 STUD THREAD |
| THREAD PITCH DIAMETERS | 0.5689 TO 0.5720 INCHES STUD THREAD |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD |
| RIGHT-HAND STUD THREAD |
| THREAD LENGTH | 1.125 INCHES MAXIMUM NUT THREAD |
| 1.125 INCHES MAXIMUM STUD THREAD |
| SPECIAL FEATURES | STUD END DRILLED FOR COTTER PIN,0.188 IN. DIA HOLE,0.250 IN. FROM END OF STUD TO CENTER OF HOLE |
| HARDNESS RATING | 36.9 ROCKWELL C MINIMUM AND |
| 43.1 ROCKWELL C MAXIMUM |
| DISTANCE FROM COTTER PIN HOLE CENTERLINE TO NUT END | 0.250 INCHES NOMINAL FIRST HOLE |
| COTTER PIN HOLE DIAMETER | 0.109 INCHES NOMINAL FIRST HOLE |