| FASTENER LENGTH | 0.407 INCHES MINIMUM AND 0.467 INCHES MAXIMUM |
| HEAD HEIGHT | 0.080 INCHES MINIMUM AND 0.100 INCHES MAXIMUM |
| HEAD DIAMETER | 0.440 INCHES MINIMUM AND 0.470 INCHES MAXIMUM |
| HEAD STYLE | ROUND |
| INTERNAL DRIVE STYLE | SLOT |
| MATERIAL | STEEL OVERALL |
| PRIMARY WASHER MATERIAL THICKNESS | 0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM |
| PRIMARY WASHER OUTSIDE DIAMETER | 0.460 INCHES MINIMUM AND 0.470 INCHES MAXIMUM |
| PRIMARY WASHER STYLE | FLAT INTERNAL TEETH |
| PROPRIETARY CHARACTERISTICS | PACS |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | "SEMS" ROUND HEAD SCREW |
| SECONDARY WASHER OUTSIDE DIAMETER | 0.460 INCHES MINIMUM AND 0.470 INCHES MAXIMUM |
| SECONDARY WASHER MATERIAL THICKNESS | 0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM |
| WASHER QUANTITY | 1 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 20 |
| THREAD SERIES DESIGNATOR | UNC |