| SPECIAL FEATURES | FIRST WASHER IS LOCK WASHER, SECOND IS CAPTIVE WASHER; ASSEMBLED BY MANUFACTURER |
| WASHER QUANTITY | 2 |
| WIDTH ACROSS FLATS | 0.188 INCHES NOMINAL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.970 INCHES MINIMUM AND 1.000 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 20 |
| THREAD SERIES DESIGNATOR | UNC |
| FASTENER LENGTH | 0.970 INCHES MINIMUM AND 1.000 INCHES MAXIMUM |
| HEAD HEIGHT | 0.132 INCHES MAXIMUM |
| HEAD DIAMETER | 0.437 INCHES MAXIMUM |
| HEAD STYLE | BUTTON |
| INTERNAL DRIVE STYLE | HEXAGON |
| MATERIAL | STEEL CORROSION RESISTING OVERALL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | DWG: SCREW, BUTTON HEAD, FULL THREAD, ASSEMBLED WASHERS |
| PRIMARY WASHER MATERIAL THICKNESS | 0.062 INCHES NOMINAL |
| PRIMARY WASHER OUTSIDE DIAMETER | 0.489 INCHES NOMINAL |
| PRIMARY WASHER STYLE | FLAT |
| PROPRIETARY CHARACTERISTICS | PACS |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| SECONDARY WASHER OUTSIDE DIAMETER | 0.500 INCHES NOMINAL |
| SECONDARY WASHER STYLE | FLAT |
| SECONDARY WASHER RELATIONSHIP TO PRIMARY WASHER | IDENTICAL |
| SECONDARY WASHER MATERIAL THICKNESS | 0.045 INCHES NOMINAL |