| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| FASTENER LENGTH | 4.000 INCHES NOMINAL |
| HEAD STYLE | ROUND |
| HEAD DIAMETER | 0.670 INCHES MINIMUM AND 0.708 INCHES MAXIMUM |
| HEAD HEIGHT | 0.237 INCHES MINIMUM AND 0.256 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| NOMINAL THREAD DIAMETER | 0.375 INCHES |
| SCREW MATERIAL | STEEL COMP 1010 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD ALL MATERIAL RESPONSES |