THREAD SERIES DESIGNATOR | UNC |
NOMINAL THREAD DIAMETER | 0.164 INCHES |
THREAD QUANTITY PER INCH | 32 |
THREAD CLASS | 2A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.250 INCHES NOMINAL |
FASTENER LENGTH | 0.688 INCHES NOMINAL |
MATERIAL | STEEL COMP 630 OVERALL |
SURFACE TREATMENT | PASSIVATE OVERALL |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND |
| 42.0 ROCKWELL C MAXIMUM OVERALL |
HEAD STYLE | HEXAGON |
HEAD HEIGHT | 0.093 INCHES NOMINAL |
WIDTH BETWEEN FLATS | 0.312 INCHES NOMINAL |
POINT STYLE | FLAT |
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 |
FIRST DIAMETER FROM HEAD | 0.2495 INCHES MINIMUM AND |
| 0.2498 INCHES MAXIMUM |
SECOND DIAMETER FROM HEAD | 0.158 INCHES MINIMUM AND |
| 0.163 INCHES MAXIMUM |
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.377 INCHES MINIMUM AND |
| 0.383 INCHES MAXIMUM |
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 0.438 INCHES NOMINAL |
FEATURES PROVIDED | DRY FILM LUBRICANT |