| FASTENER LENGTH | 0.500 INCHES NOMINAL |
| HEAD DIAMETER | 0.256 INCHES MINIMUM AND 0.270 INCHES MAXIMUM |
| HEAD HEIGHT | 0.087 INCHES MINIMUM AND 0.097 INCHES MAXIMUM |
| HEAD STYLE | PAN NO. 2 |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| MATERIAL DOCUMENT AND CLASSIFICATION | AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 410 OVERALL |
| NONMACHINE NOMINAL THREAD DIAMETER | 0.138 INCHES |
| NONMACHINE THREAD STYLE | WIDE FLUTE (TYPE H OR BT) OR THD FLUTE (TYPE BF) |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ=P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |