| COUNTERSINK ANGLE | 80.0 DEGREES MINIMUM AND 84.0 DEGREES MAXIMUM |
| FASTENER LENGTH | 0.690 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |
| FEATURES PROVIDED | CASEHARDENED |
| HARDNESS RATING | 28.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD DIAMETER | 0.600 INCHES MINIMUM AND 0.635 INCHES MAXIMUM |
| HEAD STYLE | FLAT COUNTERSUNK |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTMA545 ASSN STD ALL MATERIAL RESPONSES OR ASTMA548 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| MATERIAL | STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1022 OVERALL |
| NONMACHINE NOMINAL THREAD DIAMETER | 0.312 INCHES |
| NONMACHINE THREAD STYLE | BLUNT (TYPE SW) OR BLUNT (TYPE TT) |
| SPECIAL FEATURES | TRIANGLE /TAPTITE) SHAPE THREADS |
| SURFACE TREATMENT | PHOSPHATE OVERALL |