THREAD SERIES DESIGNATOR | UNJF |
NOMINAL THREAD DIAMETER | 0.375 INCHES |
THREAD QUANTITY PER INCH | 24 |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.658 INCHES MINIMUM AND |
| 0.718 INCHES MAXIMUM |
FASTENER LENGTH | 3.428 INCHES MINIMUM AND |
| 3.448 INCHES MAXIMUM |
MATERIAL | STEEL COMP 8740 OVERALL |
MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
SURFACE TREATMENT | CADMIUM OVERALL |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND |
| 32.0 ROCKWELL C MAXIMUM OVERALL |
MINIMUM TENSILE STRENGTH | 125000 POUNDS PER SQUARE INCH |
HEAD STYLE | HEXAGON |
HEAD HEIGHT | 0.240 INCHES MINIMUM AND |
| 0.260 INCHES MAXIMUM |
WIDTH BETWEEN FLATS | 0.679 INCHES MINIMUM AND |
| 0.690 INCHES MAXIMUM |
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 2 |
FIRST DIAMETER FROM HEAD | 0.368 INCHES MINIMUM AND |
| 0.375 INCHES MAXIMUM |
SECOND DIAMETER FROM HEAD | 0.307 INCHES MINIMUM AND |
| 0.311 INCHES MAXIMUM |
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.480 INCHES MINIMUM AND |
| 0.520 INCHES MAXIMUM |
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 2.730 INCHES MINIMUM AND |
| 2.770 INCHES MAXIMUM |
SPECIAL FEATURES | HEAD HAS 2 SLOTS 180 DEGREES APART 0.130 IN. MIN 0.140 IN. MAX W |
THE MANUFACTURERS DATA | |
MANUFACTURERS CODE | 80539 |
DESIGN CONTROL REFERENCE | 4014705 |