| MRC |
Requirement Statement |
Characteristics |
| AASB |
FASTENER LENGTH |
4.551 INCHES MINIMUM AND 4.573 INCHES MAXIMUM |
| CQFM |
HARDNESS RATING |
32.0 ROCKWELL C MINIMUM OVERALL AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| AASU |
HEAD HEIGHT |
0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM |
| AASK |
HEAD STYLE |
HEXAGON |
| MATT |
MATERIAL |
STEEL COMP 4140 OVERALL OR STEEL COMP 8640 OVERALL |
| AHYM |
NOMINAL THREAD DIAMETER |
0.500 INCHES |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
ASTM-A322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR ASTM-A331 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| THSD |
THREAD SERIES DESIGNATOR |
UNF |
| AATB |
WIDTH BETWEEN FLATS |
0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |
| AAJD |
THREAD CLASS |
3A |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASA |
THREAD LENGTH |
1.380 INCHES NOMINAL |
| CMLP |
THREAD QUANTITY PER INCH |
20 |
