| FASTENER LENGTH | 3.294 INCHES NOMINAL |
| HEAD HEIGHT | 0.188 INCHES MINIMUM AND 0.203 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 | A286 PER AMS5731,5732,5737 OR AMS5853 AEROSPACE MATERIAL SPEC STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | IRON ALLOY 660 OVERALL |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.3750 INCHES |
| SHOULDER DIAMETER | 0.4365 INCHES MINIMUM AND 0.4370 INCHES MAXIMUM OVERALL |
| SHOULDER SHAPE | ROUND OVERALL |
| SHOULDER LENGTH | 2.678 INCHES MINIMUM AND 2.700 INCHES MAXIMUM OVERALL |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |
| THREAD QUANTITY PER INCH | 24 |
| WIDTH BETWEEN FLATS | 0.554 INCHES MINIMUM AND 0.564 INCHES MAXIMUM |
| SPECIFICATION/STANDARD DATA | 80205-NAS1160 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | NAS4006 NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE HEAD |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | NAS4006 NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE THREADS |
| SURFACE TREATMENT | ALUMINUM HEAD |
| SURFACE TREATMENT | ALUMINUM THREADS |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.607 INCHES NOMINAL |