The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FLAT COUNTERSUNK, thread_class: 2A A, head_diameter: 0.249 INCHES MINIMUM AND 0.279 INCHES MAXIMUM IN, thread_length: 0.313 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN, screw_material: STEEL OR STEEL COMP 1010, fastener_length: 0.375 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-144-3950, 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 | 0.249 INCHES MINIMUM AND 0.279 INCHES MAXIMUM IN |
| thread_length | 0.313 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN |
| screw_material | STEEL OR STEEL COMP 1010 |
| fastener_length | 0.375 INCHES NOMINAL IN |
| thread_direction | RIGHT-HAND |
| countersink_angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| internal_drive_style | CROSS RECESS TYPE 1 |
| nominal_thread_diameter | 0.138 INCHES IN |
| screw_surface_treatment | CADMIUM |
| minimum_tensile_strength | 55000 POUNDS PER SQUARE INCH LBS |
| NSN | 5305-00-144-3950 |
| HEAD DIAMETER | 0.249 INCHES MINIMUM AND 0.279 INCHES MAXIMUM IN |
| HEAD STYLE | FLAT COUNTERSUNK |
| SCREW MATERIAL | STEEL OR STEEL COMP 1010 |
| NOMINAL THREAD DIAMETER | 0.138 INCHES IN |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |
| DEPARTURE FROM CITED DESIGNATOR | AS MODIFIED BY INTERNAL DRIVE STYLE AND LOCATION |
| FASTENER LENGTH | 0.375 INCHES NOMINAL IN |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-630 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-631 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-634 FED SPEC 2ND MATERIAL RESPONSE |
| THREAD DIRECTION | RIGHT-HAND |
| MINIMUM TENSILE STRENGTH | 55000 POUNDS PER SQUARE INCH LBS |