| MRC |
Requirement Statement |
Characteristics |
| CRZS |
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER |
1.516 INCHES NOMINAL FIRST HOLE |
| AASB |
FASTENER LENGTH |
1.562 INCHES MINIMUM AND 1.625 INCHES MAXIMUM |
| CQFM |
HARDNESS RATING |
95.5 ROCKWELL B MINIMUM OVERALL AND 100.0 ROCKWELL B MAXIMUM OVERALL |
| AASU |
HEAD HEIGHT |
0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM |
| AASK |
HEAD STYLE |
HEXAGON |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
SAE GR 1 OR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATT |
MATERIAL |
STEEL OVERALL |
| CQBC |
MINIMUM TENSILE STRENGTH |
55000 POUNDS PER SQUARE INCH |
| CQHQ |
MINIMUM YIELD STRENGTH |
55000 POUNDS PER SQUARE INCH |
| AHYM |
NOMINAL THREAD DIAMETER |
0.250 INCHES |
| AAWB |
SHANK UNTHREADED HOLE DIAMETER |
0.076 INCHES NOMINAL FIRST HOLE |
| AATB |
WIDTH BETWEEN FLATS |
0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM |
| AAJD |
THREAD CLASS |
2A |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASA |
THREAD LENGTH |
0.750 INCHES MINIMUM AND 0.938 INCHES MAXIMUM |
| CMLP |
THREAD QUANTITY PER INCH |
20 |
| THSD |
THREAD SERIES DESIGNATOR |
UNC |
