GS551C3-338: SCREW,MACHINE.
The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4037 OR STEEL COMP 8740 OVERALL, head_style: FLAT COUNTERSUNK, thread_class: 2A A, head_diameter: 0.276 INCHES NOMINAL IN, thread_length: 0.284 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN, screw_material: STEEL COMP 4037 OR STEEL COMP 4140 OR STEEL COMP 4340. This part is cataloged in the U.S.
Government catalog under NSN 5305-00-515-7058, 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.
| material | STEEL COMP 4037 OR STEEL COMP 8740 OVERALL |
| head_style | FLAT COUNTERSUNK |
| thread_class | 2A A |
| head_diameter | 0.276 INCHES NOMINAL IN |
| thread_length | 0.284 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN |
| screw_material | STEEL COMP 4037 OR STEEL COMP 4140 OR STEEL COMP 4340 |
| shoulder_shape | ROUND FIRST SHOULDER |
| fastener_length | 0.579 INCHES MINIMUM AND 0.609 INCHES MAXIMUM IN |
| hardness_rating | 33.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OVERALL |
| shoulder_length | 0.225 INCHES MINIMUM AND 0.255 INCHES MAXIMUM FIRST SHOULDER IN |
| thread_direction | RIGHT-HAND |
| countersink_angle | 100.0 DEGREES NOMINAL |
| NSN | 5305-00-515-7058 |
| SCREW SURFACE TREATMENT | CADMIUM |
| FASTENER LENGTH | 0.594 INCHES NOMINAL IN |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD ALL MATERIAL RESPONSES |
| THREAD LENGTH | 0.314 INCHES MINIMUM IN |
| HARDNESS RATING | 33.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM |
| NOMINAL THREAD DIAMETER | 0.190 INCHES IN |
| HEAD STYLE | FLAT COUNTERSUNK |
| THREAD DIRECTION | RIGHT-HAND |
| SCREW MATERIAL | STEEL COMP 4037 OR STEEL COMP 4140 OR STEEL COMP 4340 |
| MINIMUM TENSILE STRENGTH | 150000 POUNDS PER SQUARE INCH LBS |