| FASTENER LENGTH | 0.751 INCHES MINIMUM AND 0.781 INCHES MAXIMUM |
| GRIP LENGTH | 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM |
| GRIP DIAMETER | 0.3891 INCHES MINIMUM AND 0.3901 INCHES MAXIMUM |
| HEAD HEIGHT | 0.188 INCHES MINIMUM AND 0.203 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT, TENSION, HEX HEAD, CLOSE TOLERANCE, ALLOY STEEL, SHORT THREAD, REDUCED MAJOR THREAD DIA, SELF-LOCKING AND NONLOCKING, 160 KSI FTU |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS6349ORAMS6382 NATIONAL STD/SPEC 1ST MATERIAL RESPONSE OR AMS6415ORAMS6484 NATIONAL STD/SPEC 2ND MATERIAL RESPONSE OR AMS6322, AMS6325 OR AMS6327 NATIONAL STD/SPEC 3RD MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 4140 OR STEEL COMP 4340 OR STEEL COMP 8740 OVERALL |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.3750 INCHES |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.454 INCHES NOMINAL |
| THREAD QUANTITY PER INCH | 24 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |
| WIDTH BETWEEN FLATS | 0.554 INCHES MINIMUM AND 0.564 INCHES MAXIMUM |
| SPECIFICATION/STANDARD DATA | NAS6203 THRU NAS6220 NATIONAL STD/SPEC |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS-QQ-P-416, TYPE II, CLASS 2. EMBRITTLEMENT REQUIREMENT PER NAS4002 NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |