| THREAD SERIES DESIGNATOR | UNF |
| NOMINAL THREAD DIAMETER | 0.5625 INCHES |
| THREAD QUANTITY PER INCH | 18 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.906 INCHES NOMINAL |
| MATERIAL | STEEL CORROSION RESISTING OVERALL |
| STYLE DESIGNATOR | ROUND, CLOSED W/SHOULDER |
| EYE INSIDE DIAMETER | 0.500 INCHES MINIMUM AND |
| 0.503 INCHES MAXIMUM |
| SHOULDER THICKNESS | 0.125 INCHES NOMINAL |
| SHANK LENGTH | 4.140 INCHES MINIMUM AND |
| 4.187 INCHES MAXIMUM |
| EYE STOCK THICKNESS | 0.370 INCHES MINIMUM AND |
| 0.380 INCHES MAXIMUM |
| SHOULDER DIAMETER | 1.1875 INCHES NOMINAL |
| SHANK DIAMETER | 0.558 INCHES MINIMUM AND |
| 0.562 INCHES MAXIMUM |
| DISTANCE FROM CENTER OF EYE TO SHANK END | 5.078 INCHES MINIMUM AND |
| 5.125 INCHES MAXIMUM |
| EYE OUTSIDE WIDTH | 1.1875 INCHES NOMINAL |
| DISTANCE FROM THREADED END TO SHANK HOLE CENTER | 0.8385 INCHES NOMINAL OVERALL |
| SHANK UNTHREADED HOLE DIAMETER | 0.131 INCHES MINIMUM AND |
| 0.151 INCHES MAXIMUM OVERALL |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 88044 |
| DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | AN49-C40 |