| FULL INTERNAL THREAD LENGTH | 0.180 INCHES NOMINAL |
| INSERT SIZE | .2500-20UNC-2A |
| INTERNAL THREAD RELIEF DEPTH | 0.060 INCHES MINIMUM AND 0.080 INCHES MAXIMUM |
| LENGTH | 0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS5640, TYPE 1 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A582/582M ASSN STD 1ST MATERIAL RESPONSE OR AMS5640, TYPE 2 ASSN STD 2ND MATERIAL RESPONSE OR AMS5738 ASSN STD 2ND MATERIAL RESPONSE OR ASTM A582/582M ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 303 OVERALL |
| NOMINAL THREAD SIZE | 0.2500 INCHES |
| SPECIAL FEATURES | HAS .1640-32UNJC-3B INTERNAL THREADING. |
| STYLE DESIGNATOR | KEYLOCK |
| THREAD LENGTH | 0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |
| THREAD QUANTITY PER INCH | 20 |