| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.164 INCHES |
| THREAD QUANTITY PER INCH | 32 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.297 INCHES MINIMUM AND |
| 0.390 INCHES MAXIMUM |
| FASTENER LENGTH | 0.359 INCHES MINIMUM AND |
| 0.390 INCHES MAXIMUM |
| MATERIAL | STEEL PRIMARY WASHER |
| STEEL COMP 1018 OR |
| STEEL COMP 1019 OR |
| STEEL COMP 1020 OR |
| STEEL COMP 1021 OR |
| STEEL COMP 1022 FASTENER |
| MATERIAL DOCUMENT AND CLASSIFICATION | AISI ASSN STD SINGLE MATERIAL RESPONSE PRIMARY WASHER |
| AISI ASSN STD SINGLE MATERIAL RESPONSE FASTENER |
| SURFACE TREATMENT | NICKEL PRIMARY WASHER |
| NICKEL FASTENER |
| HARDNESS RATING | 40.0 ROCKWELL C MINIMUM AND |
| 50.0 ROCKWELL C MAXIMUM PRIMARY WASHER |
| 40.0 ROCKWELL C MINIMUM FASTENER |
| WASHER QUANTITY | 1 |
| PRIMARY WASHER STYLE | SPRING TENSION |
| PRIMARY WASHER OUTSIDE DIAMETER | 0.430 INCHES MINIMUM AND |
| 0.437 INCHES MAXIMUM |
| PRIMARY WASHER MATERIAL THICKNESS | 0.040 INCHES NOMINAL |
| SPECIAL FEATURES | CORE HARDNESS ROCKWELL SCALE C 28MIN. 38MAX. |
| THE MANUFACTURERS DATA | |
| MANUFACTURERS CODE | 06KW9 |
| DESIGN CONTROL REFERENCE | 407151 |