| FASTENER LENGTH | 0.625 INCHES NOMINAL |
| HEAD DIAMETER | 0.357 INCHES MINIMUM AND 0.373 INCHES MAXIMUM |
| HEAD HEIGHT | 0.122 INCHES MINIMUM AND 0.132 INCHES MAXIMUM |
| HEAD STYLE | PAN |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE II |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS-QQ-S-763A CL 302, CONDITION B ASSN STD SINGLE MATERIAL RESPONSE PRIMARY WASHER |
| MATERIAL DOCUMENT AND CLASSIFICATION | NAS-35338 NATIONAL STD SINGLE MATERIAL RESPONSE LOCKING FEATURE |
| MATERIAL | STEEL CORROSION RESISTING LOCKING FEATURE |
| MATERIAL | STEEL CORROSION RESISTING PRIMARY WASHER |
| MATERIAL | STEEL FASTENER |
| NOMINAL THREAD DIAMETER | 0.190 INCHES |
| PRIMARY WASHER MATERIAL THICKNESS | 0.029 INCHES MINIMUM AND 0.035 INCHES MAXIMUM |
| PRIMARY WASHER OUTSIDE DIAMETER | 0.433 INCHES MINIMUM AND 0.453 INCHES MAXIMUM |
| PRIMARY WASHER STYLE | FLAT |
| SECONDARY WASHER MATERIAL THICKNESS | 0.029 INCHES MINIMUM AND 0.035 INCHES MAXIMUM |
| SECONDARY WASHER OUTSIDE DIAMETER | 0.337 INCHES MAXIMUM |
| SECONDARY WASHER STYLE | SPLIT HELICAL RING |
| SECONDARY WASHER RELATIONSHIP TO PRIMARY WASHER | NOT IDENTICAL |
| SURFACE TREATMENT | BLACK CHEMICAL FINISH OVERALL |
| THREAD CLASS | 2A |
| THREAD LENGTH | 0.469 INCHES NOMINAL |
| THREAD QUANTITY PER INCH | 32 |
| THREAD SERIES DESIGNATOR | UNF |
| WASHER QUANTITY | 2 |