| MRC |
Requirement Statement |
Characteristics |
| AASB |
FASTENER LENGTH |
2.750 INCHES NOMINAL |
| CQFM |
HARDNESS RATING |
32.0 ROCKWELL C MINIMUM OVERALL AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| AASU |
HEAD HEIGHT |
0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM |
| AASK |
HEAD STYLE |
HEXAGON |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
SAE J429, GRADE 8 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| MATT |
MATERIAL |
STEEL OVERALL |
| AHYM |
NOMINAL THREAD DIAMETER |
0.375 INCHES |
| THSD |
THREAD SERIES DESIGNATOR |
UNF |
| AATB |
WIDTH BETWEEN FLATS |
0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-P-416, TYPE 2, CLASS 2 FED SPEC 1ST TREATMENT RESPONSE OVERALL OR ASTM B633, CLASS FE/ZN8 ASSN STD 2ND TREATMENT RESPONSE OVERALL |
| 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 |
2.667 INCHES MINIMUM AND 2.750 INCHES MAXIMUM |
| CMLP |
THREAD QUANTITY PER INCH |
24 |
