| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.138 INCHES |
| THREAD QUANTITY PER INCH | 32 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| FASTENER LENGTH | 0.587 INCHES MINIMUM AND |
| 0.597 INCHES MAXIMUM |
| MATERIAL | ALUMINUM ALLOY 6061 HEAD |
| STEEL CORROSION RESISTING SECONDARY WASHER |
| STEEL CORROSION RESISTING PRIMARY WASHER |
| STEEL COMP 302 SPRING |
| ALUMINUM ALLOY 6061 STAND-OFF |
| STEEL CORROSION RESISTING FASTENER |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/8, T4 FED SPEC SINGLE MATERIAL RESPONSE HEAD |
| MIL-S-5059, 300 SERIES MIL SPEC ALL MATERIAL RESPONSES SECONDARY WASHER |
| MIL-S-5059, 300 SERIES MIL SPEC ALL MATERIAL RESPONSES PRIMARY WASHER |
| QQ-C-423, COND B FED SPEC SINGLE MATERIAL RESPONSE SPRING |
| QQ-A-225/8, T4 FED SPEC SINGLE MATERIAL RESPONSE STAND-OFF |
| ASTM A493, 300 SERIES ASSN STD ALL MATERIAL RESPONSES FASTENER |
| SURFACE TREATMENT | ANODIZE HEAD |
| PASSIVATE SECONDARY WASHER |
| PASSIVATE PRIMARY WASHER |
| PASSIVATE SPRING |
| ANODIZE STAND-OFF |
| PASSIVATE FASTENER |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625, TYPE 1, CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE HEAD |
| QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE SECONDARY WASHER |
| QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE PRIMARY WASHER |
| MIL-A-8625, TYPE 1, CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE STAND-OFF |
| QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE FASTENER |
| HEAD STYLE | FILLISTER |
| HEAD DIAMETER | 0.356 INCHES NOMINAL |
| HEAD HEIGHT | 0.385 INCHES NOMINAL |
| INTERNAL DRIVE STYLE | SLOT |
| MATERIAL ACCOMMODATED THICKNESS | 0.280 INCHES NOMINAL |