THREAD SERIES DESIGNATOR | UNJF |
NOMINAL THREAD DIAMETER | 0.4375 INCHES |
THREAD QUANTITY PER INCH | 20 |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.694 INCHES NOMINAL |
FASTENER LENGTH | 2.241 INCHES MINIMUM AND |
| 2.271 INCHES MAXIMUM |
MATERIAL | STEEL COMP 4340 OR |
| STEEL COMP 8740 OVERALL |
MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR |
| MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OR |
| AMS6322 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
SURFACE TREATMENT | CADMIUM OVERALL |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416A TY II CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND |
| 40.0 ROCKWELL C MAXIMUM OVERALL |
MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
HEAD STYLE | DISHED HEXAGON |
HEAD HEIGHT | 0.219 INCHES MINIMUM AND |
| 0.234 INCHES MAXIMUM |
WIDTH BETWEEN FLATS | 0.678 INCHES MINIMUM AND |
| 0.690 INCHES MAXIMUM |
GRIP LENGTH | 1.552 INCHES MINIMUM AND |
| 1.572 INCHES MAXIMUM |
GRIP DIAMETER | 0.4360 INCHES MINIMUM AND |
| 0.4370 INCHES MAXIMUM |
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 2.274 INCHES NOMINAL FIRST HOLE |
SHANK UNTHREADED HOLE DIAMETER | 1.106 INCHES NOMINAL ALL HOLES |
SPECIFICATION/STANDARD DATA | 80205-NAS6607 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |