SFH22-4A8: SCREW,MACHINE.
The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FLAT COUNTERSUNK, thread_class: 3A A, head_diameter: 0.497 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN, thread_length: 0.293 INCHES MINIMUM IN, screw_material: STEEL, fastener_length: 0.793 INCHES NOMINAL IN. This part is cataloged in the U.S.
Government catalog under NSN 5305-00-079-7920, 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 | 3A A |
| head_diameter | 0.497 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN |
| thread_length | 0.293 INCHES MINIMUM IN |
| screw_material | STEEL |
| fastener_length | 0.793 INCHES NOMINAL IN |
| hardness_rating | 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM |
| thread_direction | RIGHT-HAND |
| countersink_angle | 100.0 DEGREES NOMINAL |
| internal_drive_style | HIGH-TORQUE |
| nominal_thread_diameter | 0.250 INCHES IN |
| screw_surface_treatment | CADMIUM |
| NSN | 5305-00-079-7920 |
| SCREW SURFACE TREATMENT | CADMIUM |
| FASTENER LENGTH | 0.793 INCHES NOMINAL IN |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | SPS-M-107 FSCM 56878 MFR REF SINGLE MATERIAL RESPONSE |
| THREAD LENGTH | 0.293 INCHES MINIMUM IN |
| HARDNESS RATING | 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM |
| NOMINAL THREAD DIAMETER | 0.250 INCHES IN |
| HEAD STYLE | FLAT COUNTERSUNK |
| THREAD DIRECTION | RIGHT-HAND |
| SCREW MATERIAL | STEEL |
| MINIMUM TENSILE STRENGTH | 220000 POUNDS PER SQUARE INCH LBS |