445-387: SCREW,CAP,SOCKET HEAD.
The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4037 OR STEEL COMP 4137 OR STEEL COMP 8630 OR STEEL COMP 8740 OVERALL, head_style: FLAT CHAMFER, head_height: 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.367 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN, thread_length: 0.750 INCHES NOMINAL IN. This part is cataloged in the U.S.
Government catalog under NSN 5305-00-042-6816, 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 4137 OR STEEL COMP 8630 OR STEEL COMP 8740 OVERALL |
| head_style | FLAT CHAMFER |
| head_height | 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN |
| thread_class | 3A A |
| head_diameter | 0.367 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN |
| thread_length | 0.750 INCHES NOMINAL IN |
| fastener_length | 0.750 INCHES NOMINAL IN |
| hardness_rating | 36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| thread_direction | RIGHT-HAND |
| surface_treatment | CADMIUM AND CHROMATE OR ZINC AND CHROMATE OVERALL |
| width_across_flats | 0.187 INCHES MINIMUM AND 0.189 INCHES MAXIMUM IN |
| internal_drive_style | HEXAGON |
| NSN | 5305-00-042-6816 |
| WIDTH ACROSS FLATS | 0.187 INCHES MINIMUM AND 0.189 INCHES MAXIMUM IN |
| HEAD HEIGHT | 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN |
| FASTENER LENGTH | 0.750 INCHES NOMINAL IN |
| THREAD LENGTH | 0.750 INCHES NOMINAL IN |
| HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-624 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| NOMINAL THREAD DIAMETER | 0.250 INCHES IN |
| HEAD STYLE | FLAT CHAMFER |
| THREAD DIRECTION | RIGHT-HAND |
| NONDEFINITIVE SPEC/STD DATA | 1 TYPE AND 2 STYLE |