| DISTANCE FROM LARGEST DIAMETER OF BEARING SURFACE OF HEAD TO RIBS | 0.062 INCHES NOMINAL |
| FASTENER LENGTH | 2.312 INCHES MINIMUM AND 2.328 INCHES MAXIMUM |
| FEATURES PROVIDED | CASEHARDENED |
| HARDNESS RATING | 32.1 ROCKWELL C MINIMUM AND 37.6 ROCKWELL C MAXIMUM OVERALL |
| HEAD DIAMETER | 0.875 INCHES NOMINAL |
| HEAD HEIGHT | 0.417 INCHES MINIMUM AND 0.427 INCHES MAXIMUM |
| HEAD STYLE | FLAT CHAMFER |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A108 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| NOMINAL THREAD DIAMETER | 0.562 INCHES |
| RIB LENGTH | 0.750 INCHES NOMINAL |
| RIB MAJOR DIAMETER | 0.612 INCHES MINIMUM AND 0.622 INCHES MAXIMUM |
| SHOULDER DIAMETER | 0.554 INCHES MINIMUM AND 0.564 INCHES MAXIMUM FIRST SHOULDER |
| SHOULDER LENGTH | 0.750 INCHES NOMINAL FIRST SHOULDER |
| SHOULDER SHAPE | RIBBED FIRST SHOULDER |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.375 INCHES MINIMUM |
| THREAD SERIES DESIGNATOR | UNF |
| THREAD QUANTITY PER INCH | 18 |