| MRC |
Requirement Statement |
Characteristics |
| AATC |
EXTENDED WASHER DIAMETER |
24.70 MILLIMETERS MAXIMUM |
| AATD |
EXTENDED WASHER THICKNESS |
1.80 MILLIMETERS MINIMUM |
| CQWR |
EXTERNAL THREAD TOLERANCE CLASS |
6G |
| AASB |
FASTENER LENGTH |
19.6 MILLIMETERS MINIMUM AND 20.4 MILLIMETERS MAXIMUM |
| CQFM |
HARDNESS RATING |
20.0 ROCKWELL C MINIMUM OVERALL AND 30.0 ROCKWELL C MAXIMUM OVERALL |
| AASU |
HEAD HEIGHT |
11.90 MILLIMETERS MAXIMUM |
| AASK |
HEAD STYLE |
HEXAGON EXTENDED WASHER |
| MATT |
MATERIAL |
STEEL PROPERTY CLASS 8.8 OVERALL |
| CQBC |
MINIMUM TENSILE STRENGTH |
800 MEGAPASCALS |
| AHYM |
NOMINAL THREAD DIAMETER |
12.0 MILLIMETERS |
| AATB |
WIDTH BETWEEN FLATS |
14.57 MILLIMETERS MINIMUM AND 15.00 MILLIMETERS MAXIMUM |
| SFTT |
SURFACE TREATMENT |
PHOSPHATE ZINC OVERALL |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASA |
THREAD LENGTH |
17.4 MILLIMETERS MINIMUM AND 18.2 MILLIMETERS MAXIMUM |
| CQQR |
THREAD PITCH IN MILLIMETERS |
1.75 |
| THSD |
THREAD SERIES DESIGNATOR |
M |
