| FASTENER LENGTH | 0.281 INCHES MINIMUM AND 0.312 INCHES MAXIMUM |
| HEAD STYLE | FILLISTER |
| HEAD DIAMETER | 0.124 INCHES MINIMUM AND 0.140 INCHES MAXIMUM |
| HEAD HEIGHT | 0.053 INCHES MINIMUM AND 0.062 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| NOMINAL THREAD DIAMETER | 0.086 INCHES |
| MINIMUM TENSILE STRENGTH | 60000 POUNDS PER SQUARE INCH |
| SCREW MATERIAL | STEEL |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-633 FED SPEC SINGLE MATERIAL RESPONSE |
| NONDEFINITIVE SPEC/STD DATA | 1 TYPE AND 4S STYLE |