THREAD SERIES DESIGNATOR | M |
NOMINAL THREAD DIAMETER | 8.0 MILLIMETERS |
THREAD PITCH IN MILLIMETERS | 1.25 |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 22.00 MILLIMETERS NOMINAL |
FASTENER LENGTH | 49.50 MILLIMETERS MINIMUM AND |
| 50.50 MILLIMETERS MAXIMUM |
MATERIAL | STEEL OVERALL |
MATERIAL DOCUMENT AND CLASSIFICATION | ISO 898 CLASS 12.9 INTERNATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL |
SURFACE TREATMENT | OXIDE OVERALL |
COLOR | BLACK OVERALL |
HARDNESS RATING | 39.0 ROCKWELL C MINIMUM AND |
| 44.0 ROCKWELL C MAXIMUM OVERALL |
MINIMUM TENSILE STRENGTH | 177000 POUNDS PER SQUARE INCH |
MINIMUM YIELD STRENGTH | 1100 MEGAPASCALS |
HEAD STYLE | FILLISTER |
HEAD DIAMETER | 12.73 MILLIMETERS MINIMUM AND |
| 13.27 MILLIMETERS MAXIMUM |
HEAD HEIGHT | 7.64 MILLIMETERS MINIMUM AND |
| 8.00 MILLIMETERS MAXIMUM |
INTERNAL DRIVE STYLE | HEXAGON |
WIDTH ACROSS FLATS | 6.020 MILLIMETERS MINIMUM AND |
| 6.140 MILLIMETERS MAXIMUM |
SPECIAL FEATURES | FINISH IS THERMAL OR CHEMICAL BLACK OXIDE. |