| MRC |
Requirement Statement |
Characteristics |
| AASB |
FASTENER LENGTH |
2.420 INCHES MINIMUM AND 2.560 INCHES MAXIMUM |
| CQFM |
HARDNESS RATING |
25.0 ROCKWELL C MINIMUM OVERALL AND 34.0 ROCKWELL C MAXIMUM OVERALL |
| AASU |
HEAD HEIGHT |
0.378 INCHES MINIMUM AND 0.444 INCHES MAXIMUM |
| AASK |
HEAD STYLE |
HEXAGON |
| MATT |
MATERIAL |
STEEL COMP 4140 OVERALL OR STEEL COMP 4142 OVERALL OR STEEL COMP 4145 OVERALL |
| CQBC |
MINIMUM TENSILE STRENGTH |
125000 POUNDS PER SQUARE INCH |
| CQHQ |
MINIMUM YIELD STRENGTH |
105000 POUNDS PER SQUARE INCH |
| AHYM |
NOMINAL THREAD DIAMETER |
0.625 INCHES |
| ZZZT |
NONDEFINITIVE SPEC/STD DATA |
1 TYPE AND B7 GRADE |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
ASTM A193 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| AATB |
WIDTH BETWEEN FLATS |
0.906 INCHES MINIMUM AND 0.928 INCHES MAXIMUM |
| AAJD |
THREAD CLASS |
2A |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASA |
THREAD LENGTH |
1.500 INCHES MINIMUM |
| CMLP |
THREAD QUANTITY PER INCH |
11 |
| THSD |
THREAD SERIES DESIGNATOR |
UNC |
