| MATERIAL | STEEL CORROSION RESISTING OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM A380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| STYLE DESIGNATOR | PROJECTION ONE END LEFT INTERNAL THREAD |
| LEFT PROJECTION DIAMETER | 0.207 INCHES MINIMUM AND |
| 0.212 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNC LEFT INTERNAL (INCLUDES THRU THREAD) |
| NOMINAL THREAD SIZE | 0.086 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) |
| THREAD QUANTITY PER INCH | 56 LEFT INTERNAL (INCLUDES THRU THREAD) |
| THREAD DIRECTION | RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD) |
| SPECIAL FEATURES | OVERALL LENGTH IS .250 INCHES. HAS A ROCKWELL "B" HARDNESS OF 70, OR A BRINELL HARDNESS OF 125 OR LESS. BASE IS A HEXAGON. |