| FASTENER LENGTH | 0.450 INCHES NOMINAL |
| HARDNESS RATING | 30.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OVERALL |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-24093 MIL SPEC SINGLE MATERIAL RESPONSE OR AISI ASSN STD 1ST MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OR STEEL COMP 1020 OVERALL |
| MINIMUM YIELD STRENGTH | 30000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| POINT DIAMETER | 0.150 INCHES MINIMUM AND 0.155 INCHES MAXIMUM |
| POINT LENGTH | 0.096 INCHES MINIMUM AND 0.116 INCHES MAXIMUM |
| POINT STYLE | DOG |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 20 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |