| FASTENER LENGTH | 0.344 INCHES NOMINAL0.344 INCHES NOMINAL |
| HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD STYLE | HEADLESS (SETSCREW) |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1CROSS RECESS TYPE 1 |
| MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALLSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 4130 OVERALL |
| NOMINAL THREAD DIAMETER | 0.312 INCHES |
| POINT CHAMFER ANGLE | 45.0 DEGREES NOMINAL |
| POINT DIAMETER | 0.184 INCHES MINIMUM AND 0.184 INCHES MINIMUM AND 0.186 INCHES MAXIMUM0.186 INCHES MAXIMUM |
| POINT LENGTH | 0.125 INCHES NOMINAL |
| POINT STYLE | CHAMFER DOG |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HANDRIGHT-HAND |
| THREAD LENGTH | 0.219 INCHES MINIMUM0.219 INCHES MINIMUM |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC)UNIFIED NATIONAL COARSE (UNC) |
| THREAD QUANTITY PER INCH | 1818 |