| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.984 INCHES MINIMUM AND 1.015 INCHES MAXIMUM |
| FASTENER LENGTH | 1.375 INCHES NOMINAL |
| FIRST DIAMETER FROM HEAD | 0.190 INCHES MINIMUM AND 0.200 INCHES MAXIMUM |
| HEAD DIAMETER | 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| HEAD HEIGHT | 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | IRON ALLOY 660 OVERALL |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| WIDTH ACROSS FLATS | 0.187 INCHES MINIMUM AND 0.190 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2411 ASSN STD SINGLE TREATMENT RESPONSE THREADS |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | E+1204,FSCM 94697 MFR REF SINGLE TREATMENT RESPONSE HEAD |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | E+1204,FSCM 94697 MFR REF SINGLE TREATMENT RESPONSE GRIP |
| SURFACE TREATMENT | SILVER THREADS |
| SURFACE TREATMENT | PASSIVATE GRIP |
| SURFACE TREATMENT | PASSIVATE HEAD |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD CLASS | 3A |
| THREAD LENGTH | 0.359 INCHES MINIMUM AND 0.389 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES DESIGNATOR | UNF |