| FASTENER LENGTH | 0.609 INCHES MINIMUM AND 0.656 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 THREADED, A286 CRES, 10 KSI FTU |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | AMS5731 ASSN STD SINGLE MATERIAL RESPONSE AND AMS5737 ASSN STD SINGLE MATERIAL RESPONSE |
| SCREW MATERIAL | IRON ALLOY 660 |
| SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE |
| SCREW SURFACE TREATMENT | PASSIVATE |
| SPECIFICATION/STANDARD DATA | 80205-NAS1802 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.538 INCHES MINIMUM AND 0.656 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES DESIGNATOR | UNJC |
| WIDTH BETWEEN FLATS | 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM |