| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 2.266 INCHES NOMINAL FIRST HOLE |
| DISTANCE FROM CENTER OF HEAD TO CENTER OF SHANK | 0.312 INCHES NOMINAL |
| FASTENER LENGTH | 2.375 INCHES NOMINAL |
| HARDNESS RATING | 28.0 ROCKWELL C MINIMUM AND 31.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD DIAMETER | 0.685 INCHES MINIMUM AND 0.688 INCHES MAXIMUM |
| HEAD HEIGHT | 0.250 INCHES NOMINAL |
| HEAD STYLE | DOUBLE HEXAGON |
| INTERNAL DRIVE STYLE | W/O INTERNAL DRIVE |
| MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 3140 OVERALL |
| MINIMUM TENSILE STRENGTH | 135000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.437 INCHES |
| SHANK UNTHREADED HOLE DIAMETER | 0.109 INCHES NOMINAL FIRST HOLE |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD SERIES DESIGNATOR | UNF |
| THREAD QUANTITY PER INCH | 20 |