| FASTENER LENGTH | 0.596 INCHES MINIMUM AND 0.621 INCHES MAXIMUM |
| HEAD HEIGHT | 0.045 INCHES MINIMUM AND 0.050 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| INTERNAL DRIVE STYLE | W/O INTERNAL DRIVE |
| MATERIAL DOCUMENT AND CLASSIFICATION | EK155,FSCM 19139 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| NOMINAL THREAD DIAMETER | 0.375 INCHES |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
| POINT CHAMFER ANGLE | 40.0 DEGREES MINIMUM AND 50.0 DEGREES MAXIMUM |
| POINT DIAMETER | 0.125 INCHES MINIMUM AND 0.127 INCHES MAXIMUM |
| POINT LENGTH | 0.251 INCHES MINIMUM AND 0.280 INCHES MAXIMUM |
| POINT STYLE | CHAMFER DOG |
| WIDTH BETWEEN FLATS | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.341 INCHES MINIMUM AND 0.345 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNF |
| THREAD QUANTITY PER INCH | 24 |