| PROPRIETARY CHARACTERISTICS | PACS |
| NOMINAL THREAD SIZE | 0.312 INCHES |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 24 |
| THREAD SERIES DESIGNATOR | UNJF |
| COLLAR INSIDE DIAMETER | 0.314 INCHES MINIMUM AND 0.330 INCHES MAXIMUM |
| COLLAR OUTSIDE DIAMETER | 0.512 INCHES MINIMUM AND 0.518 INCHES MAXIMUM |
| COLLAR OVERALL HEIGHT | 0.652 INCHES MINIMUM AND 0.672 INCHES MAXIMUM |
| COLLAR STYLE | THREADED (BREAK OFF) TYPE |
| HEAT TREATMENT | H-1025 STRAIN HARDENED OVERALL |
| LUBRICATION | SOLID FILM |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5643 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 630 OVERALL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | HI-LOK COLLAR 17-4PH STAINLESS 1/16 GRIP VAR TENSION APP |