| DISTANCE FROM CENTER OF HEAD TO CENTER OF SHANK | 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM |
| DISTANCE FROM CENTERLINE TO FLAT | 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM |
| FASTENER LENGTH | 0.928 INCHES MINIMUM AND 0.948 INCHES MAXIMUM |
| HEAD HEIGHT | 0.100 INCHES MINIMUM AND 0.120 INCHES MAXIMUM |
| HEAD DIAMETER | 0.750 INCHES MINIMUM AND 0.770 INCHES MAXIMUM |
| HEAD STYLE | DEE CHAMFER |
| INTERNAL DRIVE STYLE | RECESSED TYPE I |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5825 ASSN STD 1ST MATERIAL RESPONSE OR AMS 7473 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL 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 TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD CLASS | 3A |
| THREAD SERIES DESIGNATOR | UNJF |
| THREAD QUANTITY PER INCH | 28 |