| MRC |
Requirement Statement |
Characteristics |
| AASB |
FASTENER LENGTH |
1.375 INCHES MINIMUM AND 1.391 INCHES MAXIMUM |
| CQFM |
HARDNESS RATING |
28.0 ROCKWELL C MINIMUM OVERALL AND 36.0 ROCKWELL C MAXIMUM OVERALL |
| AASU |
HEAD HEIGHT |
0.182 INCHES MINIMUM AND 0.192 INCHES MAXIMUM |
| AASL |
HEAD DIAMETER |
0.688 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |
| AASK |
HEAD STYLE |
FLAT CHAMFER |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATT |
MATERIAL |
STEEL COMP 4140 OVERALL |
| CQBC |
MINIMUM TENSILE STRENGTH |
120000 POUNDS PER SQUARE INCH |
| AHYM |
NOMINAL THREAD DIAMETER |
0.375 INCHES |
| AAVQ |
RIB LENGTH |
0.287 INCHES MINIMUM AND 0.329 INCHES MAXIMUM |
| AAVP |
RIB MAJOR DIAMETER |
0.405 INCHES MINIMUM AND 0.410 INCHES MAXIMUM |
| THSD |
THREAD SERIES DESIGNATOR |
UNF |
| SFTT |
SURFACE TREATMENT |
CADMIUM OVERALL AND CHROMATE OVERALL OR ZINC OVERALL AND CHROMATE OVERALL |
| AAJD |
THREAD CLASS |
2A |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASA |
THREAD LENGTH |
0.859 INCHES MINIMUM AND 0.891 INCHES MAXIMUM |
| CMLP |
THREAD QUANTITY PER INCH |
24 |
