| DISTANCE FROM LARGEST DIAMETER OF BEARING SURFACE OF HEAD TO RIBS | 2.50 MILLIMETERS NOMINAL |
| FASTENER LENGTH | 79.75 MILLIMETERS MINIMUM AND 80.25 MILLIMETERS MAXIMUM |
| FEATURES PROVIDED | CASEHARDENED |
| HEAD DIAMETER | 38.00 MILLIMETERS NOMINAL |
| HEAD HEIGHT | 10.75 MILLIMETERS MINIMUM AND 11.25 MILLIMETERS MAXIMUM |
| HEAD STYLE | FLAT CHAMFER |
| MATERIAL DOCUMENT AND CLASSIFICATION | BS 970 EN18 (STG548) 41CR4 DIN 1654 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE |
| MATERIAL | STEEL |
| MINIMUM TENSILE STRENGTH | 980 NEWTONS PER SQUARE MILLIMETER |
| NOMINAL THREAD DIAMETER | 22.00 MILLIMETERS |
| RIB MINOR DIAMETER | 1.006 INCHES MINIMUM AND 1.011 INCHES MAXIMUM |
| RIB QUANTITY | 68 |
| RIB INCLUDED ANGLE | 90.00 DEGREES NOMINAL |
| RIB LENGTH | 12.75 MILLIMETERS MINIMUM AND 13.25 MILLIMETERS MAXIMUM |
| RIB MAJOR DIAMETER | 1.046 INCHES MINIMUM AND 1.051 INCHES MAXIMUM |
| SHOULDER DIAMETER | 25.38 MILLIMETERS MINIMUM AND 25.43 MILLIMETERS MAXIMUM |
| SHOULDER SHAPE | RIBBED |
| SHOULDER LENGTH | 38.75 MILLIMETERS MINIMUM AND 39.25 MILLIMETERS MAXIMUM |
| SPECIAL FEATURES | 10.9 STRENGTH GRADE |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | DYED MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PHOSPHATE OVERALL |
| THREAD CLASS | 6G |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 35.00 MILLIMETERS NOMINAL |
| THREAD SERIES DESIGNATOR | ISO M |
| THREAD PITCH IN MILLIMETERS | 1.50 |