| FASTENER LENGTH | 1.688 INCHES MINIMUM AND 1.750 INCHES MAXIMUM |
| HEAD STYLE | PAN |
| HEAD DIAMETER | 0.594 INCHES MINIMUM AND 0.615 INCHES MAXIMUM |
| HEAD HEIGHT | 0.203 INCHES MINIMUM AND 0.218 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| NOMINAL THREAD DIAMETER | 0.312 INCHES |
| MINIMUM TENSILE STRENGTH | 80000 POUNDS PER SQUARE INCH |
| SCREW MATERIAL | STEEL CORROSION RESISTING |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763,300 SERIES FED SPEC SINGLE MATERIAL RESPONSE OR 66,300 SERIES FED STD SINGLE MATERIAL RESPONSE OR COMP 16-18 OR 18-8 ASSN STD SINGLE MATERIAL RESPONSE |
| NONDEFINITIVE SPEC/STD DATA | 3 TYPE AND 9C STYLE |