| FASTENER LENGTH | 0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM |
| HARDNESS RATING | 26.0 ROCKWELL C NOMINAL OVERALL |
| HEAD HEIGHT | 0.100 INCHES MINIMUM AND 0.120 INCHES MAXIMUM |
| HEAD LENGTH | 0.750 INCHES MINIMUM AND 0.770 INCHES MAXIMUM |
| HEAD STYLE | TEE NO. 3 |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 8740 OVERALL |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
| WIDTH BETWEEN FLATS | 0.410 INCHES MINIMUM AND 0.430 INCHES MAXIMUM |
| SURFACE FINISH | 63.0 MICROINCHES GRIP |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.607 INCHES MINIMUM AND 0.627 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNJF |
| THREAD QUANTITY PER INCH | 28 |