| THREAD SERIES DESIGNATOR | M |
| THREAD LENGTH | 18.0 MILLIMETERS MINIMUM AND |
| 25.0 MILLIMETERS MAXIMUM |
| FASTENER LENGTH | 25.0 MILLIMETERS NOMINAL |
| MATERIAL | STEEL COMP 4137 OVERALL |
| HEAD STYLE | HEXAGON |
| THREAD DIRECTION | RIGHT-HAND |
| NOMINAL THREAD DIAMETER | 6.0 MILLIMETERS |
| THREAD PITCH IN MILLIMETERS | 1.0 |
| MATERIAL DOCUMENT AND CLASSIFICATION | ALLOY STEEL PER ASTM A574M,GRADE 4137 AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | ZINC OVERALL |
| HEAD HEIGHT | 3.85 MILLIMETERS MINIMUM AND |
| 4.15 MILLIMETERS MAXIMUM |
| WIDTH BETWEEN FLATS | 9.64 MILLIMETERS MINIMUM AND |
| 10.00 MILLIMETERS MAXIMUM |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW,HEX,FORMED,METRIC SERIES |
| SPECIFICATION/STANDARD DATA | 05047-ASME B18.24-2015 NATIONAL STD/SPEC |