0162158: BOLT,SQUARE NECK.
The BOLT,SQUARE NECK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: ROUND, neck_width: 7.4 MILLIMETERS MINIMUM AND 8.0 MILLIMETERS MAXIMUM MM, head_height: 4.1 MILLIMETERS MINIMUM AND 4.8 MILLIMETERS MAXIMUM MM, neck_length: 4.4 MILLIMETERS MINIMUM AND 5.6 MILLIMETERS MAXIMUM MM, head_diameter: 19.3 MILLIMETERS MINIMUM AND 20.6 MILLIMETERS MAXIMUM MM. This part is cataloged in the U.S.
Government catalog under NSN 5306-01-641-7643, 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 OVERALL |
| head_style | ROUND |
| neck_width | 7.4 MILLIMETERS MINIMUM AND 8.0 MILLIMETERS MAXIMUM MM |
| head_height | 4.1 MILLIMETERS MINIMUM AND 4.8 MILLIMETERS MAXIMUM MM |
| neck_length | 4.4 MILLIMETERS MINIMUM AND 5.6 MILLIMETERS MAXIMUM MM |
| head_diameter | 19.3 MILLIMETERS MINIMUM AND 20.6 MILLIMETERS MAXIMUM MM |
| thread_length | 55.0 MILLIMETERS NOMINAL MM |
| fastener_length | 55.0 MILLIMETERS NOMINAL MM |
| thread_direction | RIGHT-HAND |
| end_item_identification | 2590-01-618-5030 |
| nominal_thread_diameter | 8.0 MILLIMETERS MM |
| thread_series_designator | M |
| NSN | 5306-01-641-7643 |
| NECK LENGTH | 4.4 MILLIMETERS MINIMUM AND 5.6 MILLIMETERS MAXIMUM MM |
| HEAD HEIGHT | 4.1 MILLIMETERS MINIMUM AND 4.8 MILLIMETERS MAXIMUM MM |
| EXTERNAL THREAD TOLERANCE CLASS | 8G G |
| FASTENER LENGTH | 55.0 MILLIMETERS NOMINAL MM |
| THREAD PITCH IN MILLIMETERS | 1.25 |
| THREAD LENGTH | 55.0 MILLIMETERS NOMINAL MM |
| NOMINAL THREAD DIAMETER | 8.0 MILLIMETERS MM |
| HEAD STYLE | ROUND |
| THREAD DIRECTION | RIGHT-HAND |
| NECK WIDTH | 7.4 MILLIMETERS MINIMUM AND 8.0 MILLIMETERS MAXIMUM MM |
No substitute or cross-reference records for this part.