| FASTENER LENGTH | 1.415 INCHES MINIMUM AND 1.435 INCHES MAXIMUM |
| GRIP LENGTH | 0.635 INCHES MAXIMUM |
| HEAD HEIGHT | 0.103 INCHES MINIMUM AND 0.116 INCHES MAXIMUM |
| HEAD MAJOR DIAMETER | 0.735 INCHES MINIMUM AND 0.770 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | M-573 M+35N,FSCM 56878 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| NOMINAL THREAD SIZE | 0.500 INCHES |
| SHANK DIAMETER | 0.5060 INCHES MINIMUM AND 0.5065 INCHES MAXIMUM |
| SHANK STYLE | PIN-RIVET, STRAIGHT, THREADED |
| SHEAR STRENGTH | 132000 SINGLE POUNDS PER SQUARE INCH |
| SPECIAL FEATURES | SOLID FILM LUBRICATION LF31-35-8 73197 |
| WIDTH BETWEEN FLATS | 0.221 INCHES MINIMUM AND 0.224 INCHES MAXIMUM |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 20 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |