| FASTENER LENGTH | 0.131 INCHES MINIMUM AND 0.151 INCHES MAXIMUM |
| HARDNESS RATING | 80.0 ROCKWELL B MINIMUM AND 85.0 ROCKWELL B MAXIMUM OVERALL |
| HEAD STYLE | HEADLESS (SETSCREW) |
| INTERNAL DRIVE STYLE | FOUR SPLINE |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-764 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 303 OVERALL |
| MINIMUM TENSILE STRENGTH | 70000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.060 INCHES |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
| POINT STYLE | CUP |
| SPLINE WIDTH | 0.011 INCHES MINIMUM AND 0.012 INCHES MAXIMUM |
| SPLINE MAJOR DIAMETER | 0.034 INCHES MINIMUM AND 0.035 INCHES MAXIMUM |
| SPLINE MINOR DIAMETER | 0.025 INCHES MINIMUM AND 0.026 INCHES MAXIMUM |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.131 INCHES MINIMUM AND 0.151 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 80 |
| THREAD SERIES DESIGNATOR | UNF |