| FASTENER LENGTH | 1.765 INCHES MINIMUM AND 1.812 INCHES MAXIMUM | 
| FEATURES PROVIDED | FINISHED HEAD | 
| HARDNESS RATING | 36.0 ROCKWELL C MINIMUM  AND 40.0 ROCKWELL C MAXIMUM OVERALL | 
| HEAD HEIGHT | 0.281 INCHES NOMINAL | 
| HEAD STYLE | HEXAGON | 
| HOLE CONFIGURATION STYLE | HEXAGON CORNERS | 
| HOLE DIAMETER | 0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM | 
| HOLE QUANTITY | 3 | 
| HOLE TYPE | DRILLED | 
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | 
| MATERIAL | IRON ALLOY 660 OVERALL | 
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH | 
| NOMINAL THREAD DIAMETER | 0.312 INCHES | 
| SPECIFICATION/STANDARD DATA | 80205-NAS565 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD | 
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | 
| SURFACE TREATMENT | PASSIVATE OVERALL | 
| THREAD CLASS | 3A | 
| THREAD DIRECTION | RIGHT-HAND | 
| THREAD LENGTH | 1.721 INCHES MINIMUM AND 1.751 INCHES MAXIMUM | 
| THREAD QUANTITY PER INCH | 24 | 
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) | 
| WIDTH BETWEEN FLATS | 0.490 INCHES MINIMUM AND 0.502 INCHES MAXIMUM |