74419: BOLT,SQUARE NECK.
The BOLT,SQUARE NECK is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302 OVERALL, head_style: SQUARE, neck_width: 0.245 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN, head_height: 0.125 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN, neck_length: 0.125 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN, thread_class: 2A A. This part is cataloged in the U.S.
Government catalog under NSN 5306-01-633-8071, 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 302 OVERALL |
| head_style | SQUARE |
| neck_width | 0.245 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| head_height | 0.125 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN |
| neck_length | 0.125 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN |
| thread_class | 2A A |
| thread_length | 0.605 INCHES NOMINAL IN |
| fastener_length | 0.720 INCHES MINIMUM AND 0.770 INCHES MAXIMUM IN |
| thread_direction | RIGHT-HAND |
| width_between_flats | 0.563 INCHES MINIMUM AND 0.594 INCHES MAXIMUM IN |
| end_item_identification | 4220-01-617-9405 |
| nominal_thread_diameter | 0.250 INCHES IN |
| NSN | 5306-01-633-8071 |
| NECK LENGTH | 0.125 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN |
| HEAD HEIGHT | 0.125 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN |
| FASTENER LENGTH | 0.720 INCHES MINIMUM AND 0.770 INCHES MAXIMUM IN |
| THREAD LENGTH | 0.605 INCHES NOMINAL IN |
| NOMINAL THREAD DIAMETER | 0.250 INCHES IN |
| HEAD STYLE | SQUARE |
| THREAD DIRECTION | RIGHT-HAND |
| WIDTH BETWEEN FLATS | 0.563 INCHES MINIMUM AND 0.594 INCHES MAXIMUM IN |
| NECK WIDTH | 0.245 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | ROUND HEAD CARRIAGE BOLT |