| COUNTERSINK ANGLE | 90.0 DEGREES MINIMUM AND 92.0 DEGREES MAXIMUM |
| FASTENER LENGTH | 19.20 MILLIMETERS MINIMUM AND 20.80 MILLIMETERS MAXIMUM |
| FEATURES PROVIDED | CASEHARDENED |
| HEAD DIAMETER | 7.4 MILLIMETERS MINIMUM AND 8.7 MILLIMETERS MAXIMUM |
| HEAD STYLE | OVAL COUNTERSUNK |
| MATERIAL DOCUMENT AND CLASSIFICATION | AISI ASSN STD ALL MATERIAL RESPONSES OVERALL |
| MATERIAL | STEEL OVERALL |
| NONMACHINE NOMINAL THREAD DIAMETER | 4.2 MILLIMETERS |
| NONMACHINE THREAD STYLE | GIMLET POINT (TYPE A, AB OR BA) |
| SPLINE MAJOR DIAMETER | 3.4 MILLIMETERS NOMINAL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | GM 4255-M MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CHROMATE OVERALL |