| MRC |
Requirement Statement |
Characteristics |
| AASB |
FASTENER LENGTH |
1.750 INCHES NOMINAL |
| CQFM |
HARDNESS RATING |
39.0 ROCKWELL C MINIMUM OVERALL AND 45.0 ROCKWELL C MAXIMUM OVERALL |
| AASL |
HEAD DIAMETER |
0.152 INCHES MINIMUM AND 0.166 INCHES MAXIMUM |
| AASU |
HEAD HEIGHT |
0.527 INCHES MINIMUM AND 0.547 INCHES MAXIMUM |
| AASK |
HEAD STYLE |
BUTTON |
| MATT |
MATERIAL |
STEEL OVERALL |
| AHYM |
NOMINAL THREAD DIAMETER |
0.312 INCHES |
| ABQZ |
INTERNAL DRIVE STYLE |
HEXAGON |
| AAUM |
LOCKING FEATURE |
PATCH THREADS |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
FF-S-86 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| FEAT |
SPECIAL FEATURES |
HYDROGEN EMBRITTLEMENT RELIEF TREATMENT REQUIRED |
| ASDB |
WIDTH ACROSS FLATS |
0.188 INCHES NOMINAL |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-Z-325,TYPE II,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SFTT |
SURFACE TREATMENT |
ZINC OVERALL |
| AAJD |
THREAD CLASS |
3A |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASA |
THREAD LENGTH |
1.125 INCHES MINIMUM |
| CMLP |
THREAD QUANTITY PER INCH |
18 |
| THSD |
THREAD SERIES DESIGNATOR |
UNC |
