| DISTANCE FROM CENTER OF HEAD TO CENTER OF SHANK | 0.156 INCHES NOMINAL |
| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.094 INCHES NOMINAL FIRST HOLE |
| FASTENER LENGTH | 1.250 INCHES NOMINAL |
| HARDNESS RATING | 269.0 BRINELL STANDARD MINIMUM AND 307.0 BRINELL STANDARD MAXIMUM OVERALL |
| HEAD DIAMETER | 0.776 INCHES MINIMUM AND 0.786 INCHES MAXIMUM |
| HEAD HEIGHT | 0.312 INCHES NOMINAL |
| HEAD STYLE | PAN NO. 2 |
| INTERNAL DRIVE STYLE | W/O INTERNAL DRIVE |
| MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD ALL MATERIAL RESPONSES OVERALL |
| MATERIAL | STEEL COMP 3140 OR STEEL COMP 4140 OVERALL |
| MINIMUM TENSILE STRENGTH | 135000 POUNDS PER SQUARE INCH |
| MINIMUM YIELD STRENGTH | 11000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.562 INCHES |
| NONSTANDARD THREAD PITCH DIAMETER | +0.5234 TO 0.5625 INCHES |
| SHANK UNTHREADED HOLE DIAMETER | 0.141 INCHES MINIMUM FIRST HOLE |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 18 |
| THREAD SERIES DESIGNATOR | UNF |