NASM35751: BOLT,SQUARE NECK.
The BOLT,SQUARE NECK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: ROUND, 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 U.S.
Government catalog under NSN 5306-00-012-0231, 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 | 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 | 1.000 INCHES MINIMUM IN |
| fastener_length | 3.969 INCHES MINIMUM AND 4.031 INCHES MAXIMUM IN |
| hardness_rating | 95.0 ROCKWELL B MAXIMUM OVERALL |
| thread_direction | RIGHT-HAND |
| surface_treatment | ZINC OVERALL |
| NSN | 5306-00-012-0231 |
| NECK LENGTH | 0.156 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN |
| HEAD HEIGHT | 0.156 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN |
| FASTENER LENGTH | 1.719 INCHES MINIMUM AND 1.781 INCHES MAXIMUM IN |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM B633 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| THREAD LENGTH | 0.875 INCHES MINIMUM IN |
| MATERIAL DOCUMENT AND CLASSIFICATION | SAE GR 1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| NOMINAL THREAD DIAMETER | 0.312 INCHES IN |
| HEAD STYLE | BUTTON |
| THREAD DIRECTION | RIGHT-HAND |
| NECK WIDTH | 0.307 INCHES MINIMUM AND 0.324 INCHES MAXIMUM IN |