| FASTENER LENGTH | 1.125 INCHES MINIMUM AND 1.155 INCHES MAXIMUM |
| GRIP LENGTH | 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM |
| GRIP DIAMETER | 0.404 INCHES MINIMUM AND 0.405 INCHES MAXIMUM |
| HEAD HEIGHT | 0.188 INCHES MINIMUM AND 0.203 INCHES MAXIMUM |
| HEAD STYLE | DISHED HEXAGON |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT,TENSION,CLOSE TOLERANCE,ALLOY STEEL,LONG THREAD,REDUCED MAJOR DIA.,SELF-LOCKING AND NONLOCKING,160 KSI FTU |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS6349 OR AMS6382 NATIONAL STD 1ST MATERIAL RESPONSE AND AMS6414 OR AMS6484 NATIONAL STD 2ND MATERIAL RESPONSE AND AMS6322 NATIONAL STD 3RD MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 4140 AND STEEL COMP 4340 AND STEEL COMP 8740 OVERALL |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.3750 INCHES |
| WIDTH BETWEEN FLATS | 0.554 INCHES MINIMUM AND 0.564 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416, TYPE II, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.578 INCHES NOMINAL |
| THREAD QUANTITY PER INCH | 24 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |