The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FLAT COUNTERSUNK UNDERCUT, head_height: 0.045 INCHES NOMINAL IN, thread_class: 2A A, head_diameter: 0.164 INCHES NOMINAL IN, thread_length: 0.143 INCHES MINIMUM IN, screw_material: STEEL CORROSION RESISTING. This product is currently in active production with full OEM support.
This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-856-6661, 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 UNDERCUT |
| head_height | 0.045 INCHES NOMINAL IN |
| thread_class | 2A A |
| head_diameter | 0.164 INCHES NOMINAL IN |
| thread_length | 0.143 INCHES MINIMUM IN |
| screw_material | STEEL CORROSION RESISTING |
| fastener_length | 0.188 INCHES NOMINAL IN |
| thread_direction | RIGHT-HAND |
| countersink_angle | 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM |
| internal_drive_style | CROSS RECESS TYPE 1 |
| nominal_thread_diameter | 0.086 INCHES IN |
| screw_surface_treatment | PASSIVATE |
| NSN | 5305-00-856-6661 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |
| THREAD LENGTH | 0.143 INCHES MINIMUM IN |
| FASTENER LENGTH | 0.188 INCHES NOMINAL IN |
| HEAD HEIGHT | 0.045 INCHES NOMINAL IN |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| COUNTERSINK ANGLE | 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM |
| THREAD QUANTITY PER INCH | 56 |
| SCREW MATERIAL | STEEL CORROSION RESISTING |
| SCREW SURFACE TREATMENT | PASSIVATE |
| THREAD CLASS | 2A A |