| MRC |
Requirement Statement |
Characteristics |
| AASB |
FASTENER LENGTH |
3.875 INCHES NOMINAL |
| CQFM |
HARDNESS RATING |
32.0 ROCKWELL C MINIMUM OVERALL AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| AASU |
HEAD HEIGHT |
0.195 INCHES MINIMUM AND 0.211 INCHES MAXIMUM |
| AASK |
HEAD STYLE |
HEXAGON |
| MATT |
MATERIAL |
STEEL OVERALL |
| CQBC |
MINIMUM TENSILE STRENGTH |
150000 POUNDS PER SQUARE INCH |
| AHYM |
NOMINAL THREAD DIAMETER |
0.312 INCHES |
| ZZZT |
NONDEFINITIVE SPEC/STD DATA |
1 TYPE AND 8 GRADE |
| THSD |
THREAD SERIES DESIGNATOR |
UNF |
| AATB |
WIDTH BETWEEN FLATS |
0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
| SFTT |
SURFACE TREATMENT |
CADMIUM OVERALL OR ZINC OVERALL |
| AAJD |
THREAD CLASS |
2A |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASA |
THREAD LENGTH |
0.875 INCHES MINIMUM AND 1.062 INCHES MAXIMUM |
| CMLP |
THREAD QUANTITY PER INCH |
24 |
