| MRC |
Requirement Statement |
Characteristics |
| AATC |
EXTENDED WASHER DIAMETER |
0.457 INCHES MINIMUM AND 0.469 INCHES MAXIMUM |
| AATD |
EXTENDED WASHER THICKNESS |
0.074 INCHES MINIMUM |
| AASB |
FASTENER LENGTH |
1.375 INCHES NOMINAL |
| CQFM |
HARDNESS RATING |
34.0 ROCKWELL C MINIMUM OVERALL AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| AASU |
HEAD HEIGHT |
0.300 INCHES MINIMUM AND 0.312 INCHES MAXIMUM |
| AASK |
HEAD STYLE |
DOUBLE HEXAGON EXTENDED WASHER |
| MATT |
MATERIAL |
STEEL COMP 1038 OVERALL |
| CQBC |
MINIMUM TENSILE STRENGTH |
150000 POUNDS PER SQUARE INCH |
| AHYM |
NOMINAL THREAD DIAMETER |
0.312 INCHES |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| THSD |
THREAD SERIES DESIGNATOR |
UNF |
| AATB |
WIDTH BETWEEN FLATS |
0.306 INCHES MINIMUM AND 0.315 INCHES MAXIMUM |
| CSYM |
SURFACE FINISH |
60.0 MICROINCHES BEARING SURFACE OF HEAD |
| AAJD |
THREAD CLASS |
2A |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASA |
THREAD LENGTH |
0.540 INCHES MINIMUM AND 0.660 INCHES MAXIMUM |
| CMLP |
THREAD QUANTITY PER INCH |
24 |
