The BOLT,SQUARE NECK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: BUTTON, neck_width: 0.368 INCHES MINIMUM AND 0.388 INCHES MAXIMUM IN, head_height: 0.188 INCHES MINIMUM AND 0.208 INCHES MAXIMUM IN, neck_length: 0.188 INCHES MINIMUM AND 0.219 INCHES MAXIMUM IN, thread_class: 2A A. This part is cataloged in the Federal Logistics Information System under NSN 5306-00-638-6658, 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 | BUTTON |
| neck_width | 0.368 INCHES MINIMUM AND 0.388 INCHES MAXIMUM IN |
| head_height | 0.188 INCHES MINIMUM AND 0.208 INCHES MAXIMUM IN |
| neck_length | 0.188 INCHES MINIMUM AND 0.219 INCHES MAXIMUM IN |
| thread_class | 2A A |
| head_diameter | 0.782 INCHES MINIMUM AND 0.844 INCHES MAXIMUM IN |
| thread_length | 3.000 INCHES MINIMUM IN |
| fastener_length | 6.000 INCHES NOMINAL IN |
| thread_direction | RIGHT-HAND |
| features_provided | SQUARE NUT |
| surface_treatment | ZINC OVERALL |
| NSN | 5306-00-638-6658 |
| HEAD STYLE | BUTTON |
| FEATURES PROVIDED | SQUARE NUT |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |
| SURFACE TREATMENT | ZINC OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM A153 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| HEAD DIAMETER | 0.782 INCHES MINIMUM AND 0.844 INCHES MAXIMUM IN |
| THREAD CLASS | 2A A |
| NECK LENGTH | 0.188 INCHES MINIMUM AND 0.219 INCHES MAXIMUM IN |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 16 |