| BEARING SURFACE OF HEAD SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC 1ST TREATMENT RESPONSE |
| BEARING SURFACE OF HEAD SURFACE TREATMENT | PASSIVATE |
| FASTENER LENGTH | 0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM |
| HARDNESS RATING | 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM |
| HEAD HEIGHT | 0.365 INCHES MINIMUM AND 0.395 INCHES MAXIMUM |
| HEAD LENGTH | 0.365 INCHES MINIMUM AND 0.395 INCHES MAXIMUM |
| HEAD STYLE | SPADE |
| HEAD SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC 1ST TREATMENT RESPONSE |
| HEAD SURFACE TREATMENT | PASSIVATE |
| INTERNAL DRIVE STYLE | W/O INTERNAL DRIVE |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW,RETAINING,CUTOFF VALVE SEAT |
| NOMINAL THREAD DIAMETER | 0.190 INCHES |
| NONSTANDARD THREAD PITCH DIAMETER | +0.1587 TO 0.1597 INCHES |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | AMS5643 ASSN STD SINGLE MATERIAL RESPONSE |
| SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC 1ST TREATMENT RESPONSE |
| SCREW SURFACE TREATMENT | PASSIVATE |
| SCREW MATERIAL | STEEL COMP 630 |
| SHANK SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC 1ST TREATMENT RESPONSE |
| SHANK SURFACE TREATMENT | PASSIVATE |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.395 INCHES MINIMUM AND 0.425 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 32 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |
| WIDTH BETWEEN FLATS | 0.175 INCHES MINIMUM AND 0.205 INCHES MAXIMUM |