| AATC |
EXTENDED WASHER DIAMETER |
1.040 INCHES MINIMUM AND 1.050 INCHES MAXIMUM |
| CRZS |
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER |
2.540 INCHES NOMINAL FIRST HOLE |
| CQBC |
MINIMUM TENSILE STRENGTH |
180000 POUNDS PER SQUARE INCH |
| AASA |
THREAD LENGTH |
1.120 INCHES MINIMUM |
| AASU |
HEAD HEIGHT |
0.625 INCHES NOMINAL |
| AAJD |
THREAD CLASS |
3A |
| CWYB |
SHOULDER SHAPE |
ROUND FIRST SHOULDER |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AATN |
SHOULDER DIAMETER |
0.6230 INCHES MINIMUM FIRST SHOULDER AND 0.6240 INCHES MAXIMUM FIRST SHOULDER |
| MATT |
MATERIAL |
STEEL OVERALL |
| THSD |
THREAD SERIES DESIGNATOR |
UNF |
| AAWB |
SHANK UNTHREADED HOLE DIAMETER |
0.109 INCHES NOMINAL FIRST HOLE |
| CQFM |
HARDNESS RATING |
39.0 ROCKWELL C MINIMUM OVERALL AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| AHYM |
NOMINAL THREAD DIAMETER |
0.438 INCHES |
| AASB |
FASTENER LENGTH |
3.250 INCHES NOMINAL |
| AATD |
EXTENDED WASHER THICKNESS |
0.151 INCHES NOMINAL |
| SFTT |
SURFACE TREATMENT |
CADMIUM OVERALL AND CHROMATE OVERALL |
| AATB |
WIDTH BETWEEN FLATS |
0.679 INCHES MINIMUM AND 0.690 INCHES MAXIMUM |
| CMLP |
THREAD QUANTITY PER INCH |
20 |
| AASK |
HEAD STYLE |
DOUBLE HEXAGON EXTENDED WASHER |
| AATX |
SHOULDER LENGTH |
1.416 INCHES NOMINAL FIRST SHOULDER |