420657: SCREW,MACHINE.
The SCREW,MACHINE is a Legrand industrial component. Key specifications include head_style: FLAT COUNTERSUNK, thread_class: 2A A, head_diameter: 0.389 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN, thread_length: 0.429 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN, fastener_length: 0.500 INCHES NOMINAL IN, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.
Government catalog under NSN 5305-00-042-0657, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.
Verify compatibility with your specific system configuration before ordering.
| head_style | FLAT COUNTERSUNK |
| thread_class | 2A A |
| head_diameter | 0.389 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN |
| thread_length | 0.429 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| screw_material | STEEL COMP 1010 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 |
| fastener_length | 0.500 INCHES NOMINAL IN |
| thread_direction | RIGHT-HAND |
| countersink_angle | 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM |
| internal_drive_style | SLOT |
| nominal_thread_diameter | 0.216 INCHES IN |
| screw_surface_treatment | CADMIUM OR ZINC |
| thread_quantity_per_inch | 28 |
| NSN | 5305-00-042-0657 |
| SCREW SURFACE TREATMENT | CADMIUM OR ZINC |
| FASTENER LENGTH | 0.500 INCHES NOMINAL IN |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD ALL MATERIAL RESPONSES |
| THREAD LENGTH | 0.429 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| NOMINAL THREAD DIAMETER | 0.216 INCHES IN |
| HEAD STYLE | FLAT COUNTERSUNK |
| THREAD DIRECTION | RIGHT-HAND |
| SCREW MATERIAL | STEEL COMP 1010 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 |
| INTERNAL DRIVE STYLE | SLOT |
| COUNTERSINK ANGLE | 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM |