| FASTENER LENGTH | 1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM |
| GRIP LENGTH | 0.680 INCHES MINIMUM AND 0.690 INCHES MAXIMUM |
| HARDNESS RATING | 32.5 ROCKWELL C MINIMUM HEAD AND 36.5 ROCKWELL C MAXIMUM HEAD |
| HEAD HEIGHT | 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM |
| HEAD STYLE | ERR-090 |
| HEAD MAJOR DIAMETER | 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6415 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 4340 OVERALL |
| PROPRIETARY CHARACTERISTICS | PACS |
| NOMINAL THREAD SIZE | 0.4375 INCHES |
| SHANK DIAMETER | 0.4375 INCHES NOMINAL |
| SHANK STYLE | PIN-RIVET, STRAIGHT, THREADED |
| WIDTH BETWEEN FLATS | 0.188 INCHES MINIMUM AND 0.190 INCHES MAXIMUM |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 20 |
| THREAD SERIES DESIGNATOR | UNJF |