| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.138 INCHES |
| THREAD QUANTITY PER INCH | 32 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.500 INCHES NOMINAL |
| FASTENER LENGTH | 0.500 INCHES NOMINAL |
| MATERIAL | STEEL CORROSION RESISTING OR |
| PLASTIC POLYAMIDE OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763 FED SPEC 1ST MATERIAL RESPONSE OR |
| MIL-M-20693 MIL SPEC 2ND MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| HEAD STYLE | FILLISTER |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| WASHER QUANTITY | 1 |
| PRIMARY WASHER OUTSIDE DIAMETER | 0.375 INCHES NOMINAL |
| THE MANUFACTURERS DATA | |
| MANUFACTURERS CODE | 66071 |
| DESIGN CONTROL REFERENCE | SFSW6C8CPG02NA |