| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE FASTENER |
| SURFACE TREATMENT | PASSIVATE FASTENER |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.344 INCHES MINIMUM AND 0.393 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES DESIGNATOR | UNJF |
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| FASTENER LENGTH | 2.418 INCHES MINIMUM AND 2.438 INCHES MAXIMUM |
| HARDNESS RATING | 43.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM FASTENER |
| HEAD DIAMETER | 0.328 INCHES MINIMUM AND 0.385 INCHES MAXIMUM |
| HEAD STYLE | FLAT COUNTERSUNK |
| INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) |
| LOCKING FEATURE | DETENT BALL GRIP |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5629 PH13-8 ASSN STD SINGLE MATERIAL RESPONSE FASTENER |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5673 ASSN STD SINGLE MATERIAL RESPONSE OR QQ-W-423 17-7PH FED SPEC SINGLE MATERIAL RESPONSE SPRING |
| MATERIAL | STEEL COMP 631 OVERALL |
| III PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
| PROPRIETARY CHARACTERISTICS | PACS |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| SHANK UNTHREADED HOLE DIAMETER | 0.076 INCHES MINIMUM AND 0.086 INCHES MAXIMUM FIRST HOLE |
| SURFACE FINISH | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| SURFACE FINISH | 32.0 MICROINCHES GRIP |