| THREAD SERIES DESIGNATOR | UNF |
| NOMINAL THREAD DIAMETER | 0.190 INCHES |
| THREAD QUANTITY PER INCH | 32 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.2188 INCHES MINIMUM AND |
| 0.2812 INCHES MAXIMUM |
| FASTENER LENGTH | 1.282 INCHES MINIMUM AND |
| 1.781 INCHES MAXIMUM |
| MATERIAL | STEEL CORROSION RESISTING OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| HEAD STYLE | FLAT CHAMFER |
| HEAD DIAMETER | 0.3438 INCHES MINIMUM AND |
| 0.4062 INCHES MAXIMUM |
| HEAD HEIGHT | 0.1563 INCHES MINIMUM AND |
| 0.2499 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | HEXAGON |
| WIDTH ACROSS FLATS | 0.125 INCHES NOMINAL |
| SHOULDER SHAPE | ROUND FIRST SHOULDER |
| SHOULDER DIAMETER | 0.2485 INCHES MINIMUM AND |
| 0.2495 INCHES MAXIMUM FIRST SHOULDER |
| SHOULDER LENGTH | 1.497 INCHES MINIMUM AND |
| 1.503 INCHES MAXIMUM FIRST SHOULDER |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW SHOULDER, SOCKET-HEAD, HEXAGON |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 96906 |
| DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MS51576-25 |