AN12-31A: BOLT,MACHINE.
The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include head_style: HEXAGON, grip_length: 2.188 INCHES NOMINAL IN, head_height: 0.390 INCHES MINIMUM AND 0.422 INCHES MAXIMUM IN, thread_class: 3A A, thread_length: 1.093 INCHES MINIMUM IN, fastener_length: 3.281 INCHES NOMINAL IN. This part is cataloged in the U.S.
Government catalog under NSN 5306-00-282-2766, 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 4130 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 8740 OR STEEL COMP 4140 OVERALL |
| head_style | HEXAGON |
| grip_length | 2.188 INCHES NOMINAL IN |
| head_height | 0.390 INCHES MINIMUM AND 0.422 INCHES MAXIMUM IN |
| thread_class | 3A A |
| thread_length | 1.093 INCHES MINIMUM IN |
| fastener_length | 3.281 INCHES NOMINAL IN |
| hardness_rating | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| thread_direction | RIGHT-HAND |
| features_provided | FINISHED HEAD |
| surface_treatment | CADMIUM AND CHROMATE OVERALL |
| width_between_flats | 1.053 INCHES MINIMUM AND 1.066 INCHES MAXIMUM IN |
| NSN | 5306-00-282-2766 |
| HEAD HEIGHT | 0.390 INCHES MINIMUM AND 0.422 INCHES MAXIMUM IN |
| FASTENER LENGTH | 3.281 INCHES NOMINAL IN |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| THREAD LENGTH | 1.093 INCHES MINIMUM IN |
| HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-B-6812 MIL SPEC ALL MATERIAL RESPONSES OVERALL |
| NOMINAL THREAD DIAMETER | 0.750 INCHES IN |
| FEATURES PROVIDED | FINISHED HEAD |
| HEAD STYLE | HEXAGON |
| THREAD DIRECTION | RIGHT-HAND |