| FASTENER LENGTH | 0.2805 INCHES MINIMUM AND 0.3125 INCHES MAXIMUM |
| HEAD DIAMETER | 0.306 INCHES MINIMUM AND 0.322 INCHES MAXIMUM |
| HEAD HEIGHT | 0.085 INCHES MINIMUM AND 0.096 INCHES MAXIMUM |
| HEAD STYLE | PAN NO. 2 |
| INTERNAL DRIVE STYLE | SLOT |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-634 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-636 FED SPEC SINGLE MATERIAL RESPONSE OR MIL-S-7952 MIL SPEC SINGLE MATERIAL RESPONSE SECONDARY WASHER |
| MATERIAL | STEEL COMP 1010 OVERALL |
| MATERIAL | STEEL PRIMARY WASHER |
| MATERIAL | STEEL SECONDARY WASHER |
| MINIMUM TENSILE STRENGTH | 55000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.164 INCHES |
| PRIMARY WASHER MATERIAL THICKNESS | 0.296 INCHES MAXIMUM |
| PRIMARY WASHER OUTSIDE DIAMETER | 0.296 INCHES NOMINAL |
| PRIMARY WASHER STYLE | SPLIT HELICAL RING |
| SECONDARY WASHER MATERIAL THICKNESS | 0.013 INCHES MINIMUM AND 0.019 INCHES MAXIMUM |
| SECONDARY WASHER OUTSIDE DIAMETER | 0.307 INCHES MINIMUM AND 0.317 INCHES MAXIMUM |
| SECONDARY WASHER RELATIONSHIP TO PRIMARY WASHER | NOT IDENTICAL |
| SECONDARY WASHER STYLE | FLAT |
| SPECIFICATION/STANDARD DATA | 80205-NAS720 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| WASHER QUANTITY | 2 |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TYPE 2 CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| SURFACE TREATMENT | CADMIUM SECONDARY WASHER |
| SURFACE TREATMENT | CADMIUM PRIMARY WASHER |
| THREAD CLASS | 2A |
| THREAD LENGTH | 0.2035 INCHES NOMINAL |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD SERIES DESIGNATOR | UNC |
| THREAD QUANTITY PER INCH | 32 |