| FASTENER LENGTH | 0.406 INCHES MINIMUM AND 0.438 INCHES MAXIMUM |
| HEAD HEIGHT | 0.099 INCHES MINIMUM AND 0.110 INCHES MAXIMUM |
| HEAD DIAMETER | 0.357 INCHES MINIMUM AND 0.373 INCHES MAXIMUM |
| HEAD STYLE | PAN NO. 2 |
| INTERNAL DRIVE STYLE | SLOT |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-613 FED SPEC ALL MATERIAL RESPONSES PRIMARY WASHER |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-613 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE FASTENER |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-750 FED SPEC SINGLE MATERIAL RESPONSE SECONDARY WASHER |
| MATERIAL | COPPER ALLOY FASTENER |
| MATERIAL | COPPER ALLOY 260 OR COPPER ALLOY 268 PRIMARY WASHER |
| MATERIAL | COPPER ALLOY 510 SECONDARY WASHER |
| MINIMUM TENSILE STRENGTH | 55000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.190 INCHES |
| PRIMARY WASHER MATERIAL THICKNESS | 0.047 INCHES MINIMUM |
| PRIMARY WASHER OUTSIDE DIAMETER | 0.334 INCHES MAXIMUM |
| PRIMARY WASHER STYLE | SPLIT HELICAL RING |
| SECONDARY WASHER MATERIAL THICKNESS | 0.029 INCHES MINIMUM AND 0.035 INCHES MAXIMUM |
| SECONDARY WASHER OUTSIDE DIAMETER | 0.338 INCHES MINIMUM AND 0.348 INCHES MAXIMUM |
| SECONDARY WASHER RELATIONSHIP TO PRIMARY WASHER | NOT IDENTICAL |
| SECONDARY WASHER STYLE | FLAT |
| SPECIFICATION/STANDARD DATA | 80205-NAS 720 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| WASHER QUANTITY | 2 |
| SURFACE TREATMENT | TIN OVERALL |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.344 INCHES MINIMUM AND 0.438 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 32 |
| THREAD SERIES DESIGNATOR | UNF |