| AATC |
EXTENDED WASHER DIAMETER |
1.040 INCHES MINIMUM AND 1.050 INCHES MAXIMUM |
| AHYM |
NOMINAL THREAD DIAMETER |
0.625 INCHES |
| AASA |
THREAD LENGTH |
0.909 INCHES MINIMUM AND 1.040 INCHES MAXIMUM |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-P-416,TYPE 2 CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| CBBL |
FEATURES PROVIDED |
FINISHED HEAD |
| AATB |
WIDTH BETWEEN FLATS |
0.682 INCHES MINIMUM AND 0.691 INCHES MAXIMUM |
| CQFM |
HARDNESS RATING |
33.0 ROCKWELL C MINIMUM OVERALL AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| CMLP |
THREAD QUANTITY PER INCH |
18 |
| AASU |
HEAD HEIGHT |
0.618 INCHES MINIMUM AND 0.638 INCHES MAXIMUM |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AATD |
EXTENDED WASHER THICKNESS |
0.150 INCHES MINIMUM AND 0.160 INCHES MAXIMUM |
| THSD |
THREAD SERIES DESIGNATOR |
UNF |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
QQ-S-624 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| AASB |
FASTENER LENGTH |
1.750 INCHES MINIMUM AND 1.770 INCHES MAXIMUM |
| AAJD |
THREAD CLASS |
2A |
| MATT |
MATERIAL |
STEEL COMP 8640 OVERALL OR STEEL COMP 8740 OVERALL OR STEEL COMP 8637 OVERALL OR STEEL COMP 4140 OVERALL |
| SFTT |
SURFACE TREATMENT |
CADMIUM OVERALL AND CHROMATE OVERALL |
| AASK |
HEAD STYLE |
DOUBLE HEXAGON EXTENDED WASHER |