HT51A12H: SCREW,SHOULDER.
The SCREW,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL COMP 431 OVERALL, head_style: FLAT COUNTERSUNK, thread_class: 3A A, head_diameter: 0.628 INCHES MINIMUM AND 0.633 INCHES MAXIMUM IN, thread_length: 0.531 INCHES MINIMUM IN, shoulder_shape: ROUND FIRST SHOULDER. This part is cataloged in the U.S.
Government catalog under NSN 5305-00-938-9063, 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 431 OVERALL |
| head_style | FLAT COUNTERSUNK |
| thread_class | 3A A |
| head_diameter | 0.628 INCHES MINIMUM AND 0.633 INCHES MAXIMUM IN |
| thread_length | 0.531 INCHES MINIMUM IN |
| shoulder_shape | ROUND FIRST SHOULDER |
| fastener_length | 1.281 INCHES NOMINAL IN |
| shoulder_length | 0.622 INCHES MINIMUM AND 0.624 INCHES MAXIMUM FIRST SHOULDER IN |
| thread_direction | RIGHT-HAND |
| countersink_angle | 100.0 DEGREES NOMINAL |
| shoulder_diameter | 0.326 INCHES MINIMUM AND 0.327 INCHES MAXIMUM FIRST SHOULDER IN |
| internal_drive_style | HIGH-TORQUE |
| NSN | 5305-00-938-9063 |
| FASTENER LENGTH | 1.281 INCHES NOMINAL IN |
| SHOULDER LENGTH | 0.622 INCHES MINIMUM AND 0.624 INCHES MAXIMUM FIRST SHOULDER IN |
| SHOULDER DIAMETER | 0.326 INCHES MINIMUM AND 0.327 INCHES MAXIMUM FIRST SHOULDER IN |
| THREAD LENGTH | 0.531 INCHES MINIMUM IN |
| SHOULDER SHAPE | ROUND FIRST SHOULDER |
| NOMINAL THREAD DIAMETER | 0.312 INCHES IN |
| HEAD STYLE | FLAT COUNTERSUNK |
| THREAD DIRECTION | RIGHT-HAND |
| INTERNAL DRIVE STYLE | HIGH-TORQUE |
| COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL |
No substitute or cross-reference records for this part.