| INSERT SIZE | 0.250-20 UNJC-3A |
| LENGTH | 0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-764 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 303 OVERALL |
| NOMINAL THREAD SIZE | 0.164 INCHES |
| SPECIAL FEATURES | FURNISHED W/ASSEMBLED KEY RING |
| TOP PORTION UNTHREADED OUTSIDE LENGTH | 0.032 INCHES MINIMUM AND 0.042 INCHES MAXIMUM |
| WIDTH ACROSS FLATS | 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM |
| STYLE DESIGNATOR | KEYLOCK |
| THREAD CLASS | 3B |
| THREAD QUANTITY PER INCH | 36 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |