| FASTENER LENGTH | 0.5465 INCHES MINIMUM AND 0.5945 INCHES MAXIMUM |
| HEAD HEIGHT | 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| HOLE CONFIGURATION STYLE | HEXAGON FLATS |
| HOLE DIAMETER | 0.046 INCHES MINIMUM AND 0.056 INCHES MAXIMUM |
| HOLE QUANTITY | 3 |
| HOLE TYPE | DRILLED |
| INTERNAL DRIVE STYLE | CRUCIFORM RIBBED |
| MATERIAL DOCUMENT AND CLASSIFICATION | |
| MATERIAL | |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW,HEX HEAD,CRUCIFORM RECESS,FULL THREAD,ALLOY STEEL,160 KSI FTU |
| NOMINAL THREAD DIAMETER | 0.2500 INCHES |
| SPECIFICATION/STANDARD DATA | 80205-NAS1801 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | UNABLE TO DECODE |
| SURFACE TREATMENT | UNABLE TO DECODE |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.5465 INCHES MINIMUM AND 0.5945 INCHES MAXIMUM |
| 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 |