| FULL INTERNAL THREAD LENGTH | 0.280 INCHES MINIMUM AND 0.330 INCHES MAXIMUM |
| INSERT SIZE | 0.500-13 |
| INTERNAL THREAD RELIEF DEPTH | 0.060 INCHES MINIMUM AND 0.080 INCHES MAXIMUM |
| LENGTH | 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | FED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 302 OVERALL |
| NOMINAL THREAD SIZE | 0.250 INCHES |
| STYLE DESIGNATOR | KEYLOCK |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THREAD SERIES DESIGNATOR | UNF |
| THREAD QUANTITY PER INCH | 28 |