| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD DIAMETER | 0.312 INCHES |
| THREAD QUANTITY PER INCH | 24 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.444 INCHES MINIMUM AND |
| 0.494 INCHES MAXIMUM |
| FASTENER LENGTH | 2.016 INCHES MINIMUM AND |
| 2.046 INCHES MAXIMUM |
| MATERIAL | STEEL COMP 4140 OR |
| STEEL COMP 8740 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS6349 ASSN STD 1ST MATERIAL RESPONSE OR |
| AMS6382 ASSN STD 2ND MATERIAL RESPONSE OR |
| AMS6322 ASSN STD 3RD MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM AND |
| CHROMATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-415, TY 2 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 | 0.156 INCHES MINIMUM AND |
| 0.171 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.492 INCHES MINIMUM AND |
| 0.502 INCHES MAXIMUM |
| HOLE CONFIGURATION STYLE | HEXAGON CORNERS |
| HOLE TYPE | DRILLED |
| HOLE QUANTITY | 3 |
| HOLE DIAMETER | 0.070 INCHES MINIMUM AND |
| 0.080 INCHES MAXIMUM |
| GRIP LENGTH | 1.552 INCHES MINIMUM AND |
| 1.572 INCHES MAXIMUM |
| GRIP DIAMETER | 0.3110 INCHES MINIMUM AND |
| 0.3120 INCHES MAXIMUM |
| SPECIFICATION/STANDARD DATA | 80205-NAS6605 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT, TENSION, HEX HEAD, CLOSE TOLERANCE |