| THREAD SERIES DESIGNATOR | M |
| THREAD QUANTITY PER INCH | 18 |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.500 INCHES NOMINAL |
| MATERIAL | STEEL COMP 4140 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| HARDNESS RATING | 33.0 ROCKWELL C NOMINAL AND |
| 34.0 ROCKWELL C NOMINAL AND |
| 35.0 ROCKWELL C NOMINAL AND |
| 36.0 ROCKWELL C NOMINAL AND |
| 37.0 ROCKWELL C NOMINAL AND |
| 38.0 ROCKWELL C NOMINAL AND |
| 39.0 ROCKWELL C NOMINAL OVERALL |
| STYLE DESIGNATOR | ROUND BEND |
| DISTANCE FROM INSIDE CENTER OF BEND TO BOLT END | 0.234 INCHES NOMINAL |
| INSIDE DISTANCE BETWEEN SHANKS | 1.500 INCHES NOMINAL |
| SPECIAL FEATURES | MIL-H-6875, UNS |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT, U, WRECKER, REAR |