| FASTENER LENGTH | 20.0 MILLIMETERS NOMINAL |
| HEAD HEIGHT | 5.15 MILLIMETERS MINIMUM AND 5.45 MILLIMETERS MAXIMUM |
| HEAD STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | ISO898-1 INTERNATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL PROPERTY CLASS 8.8 OVERALL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | FASTENERS, HEXAGON HEAD SCREWS, PRODUCT GRADES A AND B |
| NOMINAL THREAD DIAMETER | 8.0 MILLIMETERS |
| SPECIFICATION/STANDARD DATA | I9008-ISO4017 INTERNATIONAL STD/SPEC |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ISO4042, 8 UM THICKNESS INTERNATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | ZINC OVERALL |
| THREAD CLASS | 6G |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 20.0 MILLIMETERS NOMINAL |
| THREAD PITCH IN MILLIMETERS | 1.25 |
| THREAD SERIES DESIGNATOR | M |
| WIDTH BETWEEN FLATS | 12.73 MILLIMETERS MINIMUM AND 13.00 MILLIMETERS MAXIMUM |