| FASTENER LENGTH | 0.158 INCHES MINIMUM AND 0.188 INCHES MAXIMUM |
| HEAD DIAMETER | 0.104 INCHES MINIMUM AND 0.114 INCHES MAXIMUM |
| HEAD HEIGHT | 0.026 INCHES MINIMUM AND 0.032 INCHES MAXIMUM |
| HEAD STYLE | BUTTON |
| INTERNAL DRIVE STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | FF-S-86 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL CORROSION RESISTING OVERALL |
| NOMINAL THREAD DIAMETER | 0.060 INCHES |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW,MACHINE-BUTTON HEAD,HEX SOCKET RECESS |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THREAD LENGTH | 0.158 INCHES MINIMUM AND 0.188 INCHES MAXIMUM |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD SERIES DESIGNATOR | UNRF |
| THREAD QUANTITY PER INCH | 80 |
| WIDTH ACROSS FLATS | 0.035 INCHES NOMINAL |