| FASTENER LENGTH | 3.812 INCHES MINIMUM AND 4.000 INCHES MAXIMUM |
| HARDNESS RATING | 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD HEIGHT | 0.726 INCHES MINIMUM AND 0.774 INCHES MAXIMUM |
| HEAD STYLE | SQUARE |
| INTERNAL DRIVE STYLE | W/O INTERNAL DRIVE |
| MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| NOMINAL THREAD DIAMETER | 1.000 INCHES |
| NONDEFINITIVE SPEC/STD DATA | 1 TYPE AND 4 STYLE |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SETSCREW |
| POINT STYLE | CUP |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 4.000 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |
| THREAD QUANTITY PER INCH | 8 |
| WIDTH BETWEEN FLATS | 0.974 INCHES MINIMUM AND 1.000 INCHES MAXIMUM |