3MFRA585-31: SCREW,MACHINE.
The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FLAT COUNTERSUNK, grip_length: 1.938 INCHES NOMINAL IN, thread_class: 3A A, grip_diameter: 0.3110 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN, head_diameter: 0.629 INCHES MINIMUM AND 0.633 INCHES MAXIMUM IN, thread_length: 0.531 INCHES MINIMUM IN. This part is cataloged in the U.S.
Government catalog under NSN 5305-00-080-9429, 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 4140 OR STEEL COMP E4340 OR STEEL COMP 6150 OR STEEL COMP 8735 OR STEEL COMP 8740 OR STEEL COMP 4130 OVERALL |
| head_style | FLAT COUNTERSUNK |
| grip_length | 1.938 INCHES NOMINAL IN |
| thread_class | 3A A |
| grip_diameter | 0.3110 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN |
| head_diameter | 0.629 INCHES MINIMUM AND 0.633 INCHES MAXIMUM IN |
| thread_length | 0.531 INCHES MINIMUM IN |
| surface_finish | 32.0 MICROINCHES THREADS |
| fastener_length | 2.453 INCHES MINIMUM AND 2.500 INCHES MAXIMUM IN |
| hardness_rating | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| thread_direction | RIGHT-HAND |
| countersink_angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| NSN | 5305-00-080-9429 |
| SCREW SURFACE TREATMENT | CADMIUM |
| FASTENER LENGTH | 2.469 INCHES NOMINAL IN |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE |
| THREAD LENGTH | 0.531 INCHES MINIMUM IN |
| HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM |
| NOMINAL THREAD DIAMETER | 0.312 INCHES IN |
| HEAD STYLE | FLAT COUNTERSUNK |
| THREAD DIRECTION | RIGHT-HAND |
| SCREW MATERIAL | STEEL COMP 4130 |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH LBS |
No substitute or cross-reference records for this part.