| FASTENER LENGTH | 4.500 INCHES NOMINAL |
| HEAD STYLE | HEXAGON |
| LOCKING FEATURE | SELF-LOCKING LOCKING FEATURE |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A354, GRADE BD AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL UNS K04100 OVERALL |
| NOMINAL THREAD DIAMETER | 0.312 INCHES |
| SPECIAL FEATURES | NSN ASSIGNED IN SUPPORT OF ARMY CLEAN HARDWARE ABATEMENT INITIATIVE; PLAAIN END - OPTIONAL-TYPE SELF-LOCKING |
| SPECIFICATION/STANDARD DATA | 47-ASME B18.24-2023 NATIONAL STD/SPEC |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-PRF-32647, ZN-NI ALLOY, HEXAVALENT CHROMIUM FREE, TYPE K20 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | ZINC NICKEL AND PASSIVATE OVERALL |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |