| COLOR | BLACK OVERALL |
| FASTENER LENGTH | 40.0 MILLIMETERS NOMINAL |
| HEAD HEIGHT | 12.28 MILLIMETERS MINIMUM AND 12.72 MILLIMETERS MAXIMUM |
| HEAD STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | ISO898-1 INTERNATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OR ASTM F568M AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL PROPERTY CLASS 10.9 OVERALL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SCR,CAP,HEX,TAB,M20 C10.9 MB |
| NOMINAL THREAD DIAMETER | 20.0 MILLIMETERS |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | F-100,D60,TYPE 1 MAGNIBLACK 575 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | BLACK CHEMICAL FINISH OVERALL |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 40.0 MILLIMETERS NOMINAL |
| THREAD PITCH IN MILLIMETERS | 2.5 |
| THREAD SERIES DESIGNATOR | M |
| WIDTH BETWEEN FLATS | 29.67 MILLIMETERS MINIMUM AND 30.00 MILLIMETERS MAXIMUM |