The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include head_style: HEXAGON, grip_length: 2.188 INCHES NOMINAL IN, head_height: 0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN, thread_class: 3A A, thread_length: 0.468 INCHES MINIMUM IN, fastener_length: 2.656 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-151-1144, 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 | 0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN |
| thread_class | 3A A |
| thread_length | 0.468 INCHES MINIMUM IN |
| fastener_length | 2.656 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 | 0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN |
| NSN | 5306-00-151-1144 |
| THREAD CLASS | 3A A |
| WIDTH BETWEEN FLATS | 0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN |
| THREAD SERIES DESIGNATOR | UNF |
| SHANK UNTHREADED HOLE DIAMETER | 0.076 INCHES MINIMUM FIRST HOLE IN |
| THREAD DIRECTION | RIGHT-HAND |
| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 2.500 INCHES NOMINAL FIRST HOLE IN |
| THREAD QUANTITY PER INCH | 28 |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-B-6812 MIL SPEC ALL MATERIAL RESPONSES OVERALL |
| HEAD STYLE | HEXAGON |
| GRIP LENGTH | 2.188 INCHES NOMINAL IN |