| FASTENER LENGTH | 0.620 INCHES MINIMUM AND 0.630 INCHES MAXIMUM |
| HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL32.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD DIAMETER | 0.400 INCHES NOMINAL0.400 INCHES NOMINAL |
| HEAD HEIGHT | 0.150 INCHES NOMINAL0.150 INCHES NOMINAL |
| HEAD STYLE | FILLISTER |
| HOLE CONFIGURATION STYLE | ROUND |
| HOLE DIAMETER | 0.064 INCHES NOMINAL0.064 INCHES NOMINAL |
| HOLE QUANTITY | 22 |
| HOLE TYPE | DRILLED |
| INTERNAL DRIVE STYLE | SLOTSLOT |
| MATERIAL | STEEL OVERALL |
| NOMINAL THREAD DIAMETER | 0.250 INCHES0.250 INCHES |
| POINT CHAMFER ANGLE | 45.0 DEGREES NOMINAL45.0 DEGREES NOMINAL |
| POINT DIAMETER | 0.170 INCHES MINIMUM AND 0.176 INCHES MAXIMUM |
| POINT LENGTH | 0.220 INCHES NOMINAL |
| POINT STYLE | FLATFLAT |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HANDRIGHT-HAND |
| THREAD LENGTH | 0.400 INCHES MINIMUM AND 0.400 INCHES MINIMUM AND 0.630 INCHES MAXIMUM0.630 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 20 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC)UNIFIED NATIONAL COARSE (UNC) |