| EXTENDED WASHER DIAMETER | 26.6 MILLIMETERS MAXIMUM |
| EXTERNAL THREAD TOLERANCE CLASS | 6G |
| FASTENER LENGTH | 35.0 MILLIMETERS NOMINAL |
| GRIP LENGTH | 5.3 MILLIMETERS MAXIMUM |
| HEAD HEIGHT | 11.8 MILLIMETERS MAXIMUM |
| HEAD STYLE | CHAMFER FLANGE |
| MATERIAL DOCUMENT AND CLASSIFICATION | CEMS A-31 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL PROPERTY CLASS 10.9 OVERALL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | HEAVY HEX FLANGE HEAD BOLT |
| PROPRIETARY CHARACTERISTICS | PACS |
| NOMINAL THREAD DIAMETER | 12.0 MILLIMETERS |
| WIDTH BETWEEN FLATS | 17.6 MILLIMETERS MINIMUM AND 18.0 MILLIMETERS MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | TMS-4518, TYPE 1 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | ZINC ALLOY OVERALL |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 30.0 MILLIMETERS NOMINAL |
| THREAD SERIES DESIGNATOR | M |
| THREAD PITCH IN MILLIMETERS | 1.75 |