| THREAD DIRECTION | RIGHT-HAND |
| FASTENER LENGTH | 1.125 INCHES NOMINAL |
| MATERIAL | STEEL COMP 8740 OVERALL |
| THREAD LENGTH | 0.750 INCHES MINIMUM AND |
| 0.810 INCHES MAXIMUM |
| HEAD STYLE | DOUBLE HEXAGON EXTENDED WASHER |
| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| THREAD QUANTITY PER INCH | 28 |
| THREAD CLASS | 3A |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| MINIMUM TENSILE STRENGTH | 125000 POUNDS PER SQUARE INCH |
| HEAD HEIGHT | 0.293 INCHES MINIMUM AND |
| 0.313 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.302 INCHES MINIMUM AND |
| 0.322 INCHES MAXIMUM |
| EXTENDED WASHER DIAMETER | 0.428 INCHES MINIMUM AND |
| 0.448 INCHES MAXIMUM |
| EXTENDED WASHER THICKNESS | 0.060 INCHES MINIMUM |
| GRIP LENGTH | 0.315 INCHES MINIMUM AND |
| 0.375 INCHES MAXIMUM |
| FEATURES PROVIDED | FINISHED HEAD |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 81349 |
| DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MS9915-16 |