| FASTENER LENGTH | 0.594 INCHES MINIMUM AND 0.625 INCHES MAXIMUM |
| HEAD DIAMETER | 0.4730 INCHES MINIMUM AND 0.4920 INCHES MAXIMUM |
| HEAD HEIGHT | 0.1620 INCHES MINIMUM AND 0.1750 INCHES MAXIMUM |
| HEAD STYLE | PAN |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | MACHINE SCREW |
| MINIMUM TENSILE STRENGTH | 2540 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| SCREW MATERIAL | STEEL CORROSION RESISTING |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | SAE-AMS2700 ASSN STD SINGLE TREATMENT RESPONSE |
| SURFACE TREATMENT | ZINC NICKEL AND PASSIVATE |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.594 INCHES MINIMUM AND 0.625 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 20 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |