THREAD SERIES DESIGNATOR | UNJF |
NOMINAL THREAD DIAMETER | 0.375 INCHES |
THREAD QUANTITY PER INCH | 24 |
THREAD PITCH IN MILLIMETERS | 9.0 |
THREAD CLASS | 3A |
EXTERNAL THREAD TOLERANCE CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.641 INCHES NOMINAL |
FASTENER LENGTH | 0.641 INCHES NOMINAL |
MATERIAL | STEEL COMP 4140 OR |
| STEEL COMP 4340 OR |
| STEEL COMP 8740 OVERALL |
MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR |
| MIL-S-8844 MIL SPEC 2ND MATERIAL RESPONSE OR |
| MIL-S-6049 MIL SPEC 3RD MATERIAL RESPONSE OR |
| AMS6014 ASSN STD 4TH MATERIAL RESPONSE OVERALL |
SURFACE TREATMENT | CADMIUM OVERALL |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPEII,CLASS3 FED SPEC 1ST TREATMENT RESPONSE OVERALL |
MINIMUM TENSILE STRENGTH | 12700 POUNDS PER SQUARE INCH |
SINGLE SHEAR STRENGTH | 10500 POUNDS PER SQUARE INCH |
HEAD STYLE | FLAT COUNTERSUNK |
HEAD DIAMETER | 0.752 INCHES MINIMUM AND |
| 0.762 INCHES MAXIMUM |
COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL |
INTERNAL DRIVE STYLE | CROSS RECESS TYPE III |