| FASTENER LENGTH | 2.188 INCHES MINIMUM AND 2.250 INCHES MAXIMUM |
| HEAD STYLE | FLAT COUNTERSUNK |
| HEAD DIAMETER | 0.348 INCHES MINIMUM AND 0.385 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | SLOT |
| NOMINAL THREAD DIAMETER | 0.190 INCHES |
| MINIMUM TENSILE STRENGTH | 80000 POUNDS PER SQUARE INCH |
| COUNTERSINK ANGLE | 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
| SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC 2ND TREATMENT RESPONSE |
| DEPARTURE FROM CITED DESIGNATOR | THD RELIEVED GROOVE 0.021 IN. MIN 0.041 IN. MAX WIDE BY 45 DEG OF ANGLE |