| COLOR | BLACK |
| EXTENDED WASHER DIAMETER | 0.6718 INCHES NOMINAL |
| EXTENDED WASHER THICKNESS | 0.11 INCHES NOMINAL |
| EXTERNAL THREAD TOLERANCE CLASS | 2B |
| HARDNESS RATING | 70.0 ROCKWELL B NOMINAL |
| HEAD DIAMETER | 0.375 INCHES NOMINAL |
| HEAD HEIGHT | 0.25 INCHES NOMINAL |
| HEAD HOLE CONFIGURATION STYLE | ROUND |
| HEAD STYLE | ROUND |
| HOLE QUANTITY | 1 |
| INTERNAL DRIVE STYLE | HEXAGON |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SOCKET HEAD SCREW |
| MINIMUM TENSILE STRENGTH | 70000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.25 INCHES |
| SCREW MATERIAL | STEEL |
| SCREW SURFACE TREATMENT | BLACK CHEMICAL FINISH |
| SHANK UNTHREADED HOLE DIAMETER | 0.1875 INCHES NOMINAL HEAD |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.50 INCHES NOMINAL |
| THREAD QUANTITY PER INCH | 20 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |
| WIDTH BETWEEN FLATS | 0.50 INCHES NOMINAL |