| FASTENER LENGTH | 1.625 INCHES MINIMUM AND 1.645 INCHES MAXIMUM |
| GRIP LENGTH | 0.995 INCHES MINIMUM AND 1.005 INCHES MAXIMUM |
| HEAD HEIGHT | 0.150 INCHES MINIMUM AND 0.160 INCHES MAXIMUM |
| HEAD MAJOR DIAMETER | 0.641 INCHES MINIMUM AND 0.676 INCHES MAXIMUM |
| LUBRICATION | SOLID FILM |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP XM-13 OVERALL |
| MINIMUM TENSILE STRENGTH | 25800 POUNDS PER SQUARE INCH |
| NOMINAL THREAD SIZE | 0.4375 INCHES |
| SHANK DIAMETER | 0.4360 INCHES MINIMUM AND 0.4370 INCHES MAXIMUM |
| SHANK STYLE | PIN-RIVET, STRAIGHT, THREADED |
| SHEAR STRENGTH | 37500 DOUBLE POUNDS PER SQUARE INCH |
| SPECIFICATION/STANDARD DATA | 73197-HL646 MANUFACTURERS STANDARD |
| WIDTH BETWEEN FLATS | 0.1895 INCHES MINIMUM AND 0.1930 INCHES MAXIMUM |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD CLASS | 3A |
| THREAD SERIES DESIGNATOR | UNJF |
| THREAD QUANTITY PER INCH | 20 |