| FASTENER LENGTH | 2.869 INCHES MINIMUM AND 2.909 INCHES MAXIMUM |
| HEAD HEIGHT | 0.219 INCHES MINIMUM AND 0.234 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT, SHOULDER, HEX HEAD, CLOSE TOLERANCE, CRES, A286, 95 KSI FSU |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS5731,AMS5732 OR AMS 5737 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | IRON ALLOY 660 OVERALL |
| NOMINAL THREAD DIAMETER | 0.4375 INCHES |
| SHOULDER DIAMETER | 0.4990 INCHES MINIMUM AND 0.4995 INCHES MAXIMUM FIRST SHOULDER |
| SHOULDER SHAPE | ROUND FIRST SHOULDER |
| SHOULDER LENGTH | 2.250 INCHES MINIMUM AND 2.260 INCHES MAXIMUM FIRST SHOULDER |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.529 INCHES MINIMUM AND 0.554 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 20 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |
| WIDTH BETWEEN FLATS | 0.678 INCHES MINIMUM AND 0.690 INCHES MAXIMUM |
| SPECIFICATION/STANDARD DATA | 80205-NAS1160 NATIONAL STD/SPEC |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | NAS4006 NATIONAL STD/SPEC 1ST TREATMENT RESPONSE AND AMS 2700 METHOD 1, TYPE 2 OR TYPE 8, CLASS 4 NATIONAL STD/SPEC 2ND TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE AND ALUMINUM OVERALL |