| COLOR | YELLOW OVERALL |
| FASTENER LENGTH | 14.2 MILLIMETERS MINIMUM AND 15.8 MILLIMETERS MAXIMUM |
| HARDNESS RATING | 28.0 ROCKWELL C MINIMUM OVERALL AND 34.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD HEIGHT | 3.1 MILLIMETERS MINIMUM AND 3.9 MILLIMETERS MAXIMUM |
| HEAD STYLE | HEXAGON |
| INTERNAL DRIVE STYLE | HEXAGON |
| MATERIAL | STEEL COMP 1022 OVERALL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW, BOSSCREW HEX WASHER HEAD |
| PRIMARY WASHER MATERIAL THICKNESS | 0.6 MILLIMETERS MINIMUM AND 0.8 MILLIMETERS MAXIMUM |
| PRIMARY WASHER OUTSIDE DIAMETER | 11.6 MILLIMETERS MINIMUM AND 12.4 MILLIMETERS MAXIMUM |
| PRIMARY WASHER STYLE | FLAT |
| PROPRIETARY CHARACTERISTICS | PACS |
| NOMINAL THREAD DIAMETER | 0.138 INCHES |
| WASHER QUANTITY | 1 |
| WIDTH BETWEEN FLATS | 7.8 MILLIMETERS MINIMUM AND 8.0 MILLIMETERS MAXIMUM |
| SURFACE TREATMENT | ZINC OVERALL |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 14.2 MILLIMETERS MINIMUM AND 15.8 MILLIMETERS MAXIMUM |
| THREAD QUANTITY PER INCH | 15 |
| THREAD SERIES DESIGNATOR | M |