| MRC |
Requirement Statement |
Characteristics |
| AATC |
EXTENDED WASHER DIAMETER |
0.438 INCHES NOMINAL |
| AATD |
EXTENDED WASHER THICKNESS |
0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM |
| AASB |
FASTENER LENGTH |
1.000 INCHES NOMINAL |
| AAUR |
GRIP DIAMETER |
0.2494 INCHES MINIMUM AND 0.2499 INCHES MAXIMUM |
| ANEE |
GRIP LENGTH |
0.375 INCHES NOMINAL |
| CQFM |
HARDNESS RATING |
248.0 BRINELL STANDARD MINIMUM OVERALL AND 341.0 BRINELL STANDARD MAXIMUM OVERALL |
| AASU |
HEAD HEIGHT |
0.330 INCHES NOMINAL |
| AASK |
HEAD STYLE |
DOUBLE HEXAGON W/HOLE |
| MATT |
MATERIAL |
IRON ALLOY 660 OVERALL |
| CQBC |
MINIMUM TENSILE STRENGTH |
130000 POUNDS PER SQUARE INCH |
| CQHQ |
MINIMUM YIELD STRENGTH |
85000 POUNDS PER SQUARE INCH |
| AHYM |
NOMINAL THREAD DIAMETER |
0.250 INCHES |
| THSD |
THREAD SERIES DESIGNATOR |
UNJF |
| AATB |
WIDTH BETWEEN FLATS |
0.305 INCHES MINIMUM AND 0.313 INCHES MAXIMUM |
| CSYM |
SURFACE FINISH |
32.0 MICROINCHES BEARING SURFACE OF HEAD |
| AAJD |
THREAD CLASS |
3A |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASA |
THREAD LENGTH |
0.625 INCHES MAXIMUM |
| CMLP |
THREAD QUANTITY PER INCH |
28 |
