| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD DIAMETER | 0.4375 INCHES |
| THREAD QUANTITY PER INCH | 20 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.594 INCHES NOMINAL |
| FASTENER LENGTH | 2.544 INCHES MINIMUM AND |
| 2.564 INCHES MAXIMUM |
| MATERIAL | STEEL COMP 4140 OR |
| STEEL COMP 4340 OR |
| STEEL COMP 8740 OR |
| STEEL COMP 6150 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS6382 ASSN STD 1ST MATERIAL RESPONSE OR |
| AMS6349 ASSN STD 2ND MATERIAL RESPONSE OR |
| AMS6415 ASSN STD 3RD MATERIAL RESPONSE OR |
| AMS6484 ASSN STD 4TH MATERIAL RESPONSE OR |
| AMS6484 ASSN STD 5TH MATERIAL RESPONSE OR |
| AMS6322 ASSN STD 6TH MATERIAL RESPONSE OR |
| AMS6325 ASSN STD 7TH MATERIAL RESPONSE OR |
| AMS6327 ASSN STD 8TH MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TYPE II CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| HARDNESS RATING | 39.0 ROCKWELL C MINIMUM AND |
| 43.0 ROCKWELL C MAXIMUM OVERALL |
| MINIMUM TENSILE STRENGTH | 180000 POUNDS PER SQUARE INCH |
| HEAD STYLE | HEXAGON |
| HEAD HEIGHT | 0.219 INCHES MINIMUM AND |
| 0.234 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.679 INCHES MINIMUM AND |
| 0.690 INCHES MAXIMUM |
| GRIP LENGTH | 1.896 INCHES MINIMUM AND |
| 1.916 INCHES MAXIMUM |
| GRIP DIAMETER | 0.436 INCHES MINIMUM AND |
| 0.437 INCHES MAXIMUM |
| FEATURES PROVIDED | FLAT WASHER |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT, SHEAR, HEXAGON HEAD, LONG THREAD |