| AATD |
EXTENDED WASHER THICKNESS |
0.113 INCHES MINIMUM AND 0.133 INCHES MAXIMUM |
| THSD |
THREAD SERIES DESIGNATOR |
UNJF |
| CQFM |
HARDNESS RATING |
51.0 ROCKWELL C MINIMUM OVERALL AND 54.0 ROCKWELL C MAXIMUM OVERALL |
| AASU |
HEAD HEIGHT |
0.391 INCHES MINIMUM AND 0.411 INCHES MAXIMUM |
| AASA |
THREAD LENGTH |
0.834 INCHES MINIMUM AND 0.884 INCHES MAXIMUM |
| CQBC |
MINIMUM TENSILE STRENGTH |
260000 POUNDS PER SQUARE INCH |
| AAJD |
THREAD CLASS |
3A |
| CWYB |
SHOULDER SHAPE |
ROUND FIRST SHOULDER |
| AASB |
FASTENER LENGTH |
2.219 INCHES MINIMUM AND 2.249 INCHES MAXIMUM |
| SFTT |
SURFACE TREATMENT |
CADMIUM OVERALL AND NICKEL OVERALL AND CHROMATE OVERALL |
| AHYM |
NOMINAL THREAD DIAMETER |
0.500 INCHES |
| AATX |
SHOULDER LENGTH |
1.365 INCHES MINIMUM FIRST SHOULDER AND 1.375 INCHES MAXIMUM FIRST SHOULDER |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AATN |
SHOULDER DIAMETER |
0.5141 INCHES MINIMUM FIRST SHOULDER AND 0.5151 INCHES MAXIMUM FIRST SHOULDER |
| AATC |
EXTENDED WASHER DIAMETER |
0.818 INCHES MINIMUM AND 0.828 INCHES MAXIMUM |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
AMS 2416 ASSN STD ALL TREATMENT RESPONSES OVERALL |
| MATT |
MATERIAL |
STEEL COMP H11 OVERALL |
| CMLP |
THREAD QUANTITY PER INCH |
20 |
| AATB |
WIDTH BETWEEN FLATS |
0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM |
| AASK |
HEAD STYLE |
DOUBLE HEXAGON W/HOLE |