THREAD SERIES DESIGNATOR | UNJF |
NOMINAL THREAD DIAMETER | 0.312 INCHES |
THREAD QUANTITY PER INCH | 24 |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.498 INCHES NOMINAL |
FASTENER LENGTH | 1.113 INCHES MINIMUM AND |
| 2.153 INCHES MAXIMUM |
MATERIAL | STEEL COMP 4037 OR |
| STEEL COMP 4130 OR |
| STEEL COMP 4140 OR |
| STEEL COMP 8630 OR |
| STEEL COMP 8735 OVERALL |
MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6300 ASSN STD 1ST MATERIAL RESPONSE OR |
| MIL-S-6758 MIL SPEC 2ND MATERIAL RESPONSE OR |
| MIL-S-5626 MIL SPEC 3RD MATERIAL RESPONSE OR |
| MIL-S-6050 MIL SPEC 4TH MATERIAL RESPONSE OR |
| MIL-S-6098 MIL SPEC 5TH MATERIAL RESPONSE OVERALL |
SURFACE TREATMENT | CADMIUM AND |
| CHROMATE OVERALL |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416, TYPE 2, CLASS 2 FED SPEC ALL TREATMENT RESPONSES OVERALL |
MINIMUM TENSILE STRENGTH | 125000 POUNDS PER SQUARE INCH |
HEAD STYLE | HEXAGON |
HEAD HEIGHT | 0.203 INCHES MINIMUM AND |
| 0.235 INCHES MAXIMUM |
WIDTH BETWEEN FLATS | 0.553 INCHES MINIMUM AND |
| 0.565 INCHES MAXIMUM |
SHOULDER SHAPE | ROUND FIRST SHOULDER |
SHOULDER DIAMETER | 0.371 INCHES MINIMUM AND |
| 0.374 INCHES MAXIMUM FIRST SHOULDER |
SHOULDER LENGTH | 1.625 INCHES MINIMUM AND |
| 1.645 INCHES MAXIMUM FIRST SHOULDER |
SPECIFICATION/STANDARD DATA | 80205-NAS1297 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |