| FASTENER LENGTH | 0.2965 INCHES MINIMUM AND 0.3435 INCHES MAXIMUM |
| HEAD HEIGHT | 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW, HEX HEAD, CRUCIFORM RECESS, FULL THREAD |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | AMS5731 ASSN STD 1ST MATERIAL RESPONSE OR AMS5737 ASSN STD 2ND MATERIAL RESPONSE |
| SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS2700 ASSN STD 1ST TREATMENT RESPONSE |
| SCREW MATERIAL | IRON ALLOY 660 |
| SCREW SURFACE TREATMENT | PASSIVATE |
| SPECIFICATION/STANDARD DATA | 80205-NAS 1802 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| THREAD LENGTH | 0.2965 INCHES MINIMUM AND 0.3435 INCHES MAXIMUM |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |
| WIDTH BETWEEN FLATS | 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM |