| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD DIAMETER | 1.125 INCHES |
| THREAD QUANTITY PER INCH | 12 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.650 INCHES MINIMUM |
| FASTENER LENGTH | 6.920 INCHES NOMINAL |
| MATERIAL | STEEL COMP 4140 AND |
| STEEL COMP 4340 OR |
| STEEL COMP 8740 OR |
| STEEL COMP 6150 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR |
| MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OR |
| MIL-S-6049 MIL SPEC 3RD MATERIAL RESPONSE OR |
| MIL-S-8503 MIL SPEC 4TH MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS-QQ-416, TYPE II, CLASS 2 ASSN STD 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 | DOUBLE HEXAGON EXTENDED WASHER |
| HEAD HEIGHT | 1.051 INCHES NOMINAL |
| WIDTH BETWEEN FLATS | 1.250 INCHES NOMINAL |
| EXTENDED WASHER DIAMETER | 1.865 INCHES MINIMUM AND |
| 1.875 INCHES MAXIMUM |
| EXTENDED WASHER THICKNESS | 0.258 INCHES NOMINAL |
| GRIP LENGTH | 5.240 INCHES MINIMUM AND |
| 5.260 INCHES MAXIMUM |
| GRIP DIAMETER | 1.1225 INCHES MINIMUM AND |
| 1.1240 INCHES MAXIMUM |
| SPECIFICATION/STANDARD DATA | 80205-NASM21250 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT, TENSION, STEEL, EXTERNAL WRENCHING, FLANGED, 12-POINT, 180 KSI, 450 DEG F |