| AATB |
WIDTH BETWEEN FLATS |
0.370 INCHES MINIMUM AND 0.378 INCHES MAXIMUM |
| CBBL |
FEATURES PROVIDED |
FINISHED HEAD |
| ZZZT |
NONDEFINITIVE SPEC/STD DATA |
2 TYPE AND 2 CLASS |
| CQBC |
MINIMUM TENSILE STRENGTH |
160000 POUNDS PER SQUARE INCH |
| CQHQ |
MINIMUM YIELD STRENGTH |
130000 POUNDS PER SQUARE INCH |
| AAJD |
THREAD CLASS |
3A |
| AATD |
EXTENDED WASHER THICKNESS |
0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-P-416,TY2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| CSYM |
SURFACE FINISH |
63.0 MICROINCHES THREADS |
| AATC |
EXTENDED WASHER DIAMETER |
0.550 INCHES MINIMUM AND 0.562 INCHES MAXIMUM |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASU |
HEAD HEIGHT |
0.368 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| MATT |
MATERIAL |
STEEL OVERALL |
| CMLP |
THREAD QUANTITY PER INCH |
16 |
| THSD |
THREAD SERIES DESIGNATOR |
UNC |
| CQFM |
HARDNESS RATING |
36.0 ROCKWELL C MINIMUM OVERALL AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| AASA |
THREAD LENGTH |
1.109 INCHES MINIMUM AND 1.281 INCHES MAXIMUM |
| AHYM |
NOMINAL THREAD DIAMETER |
0.375 INCHES |
| SFTT |
SURFACE TREATMENT |
CADMIUM OVERALL AND CHROMATE OVERALL |
| AASB |
FASTENER LENGTH |
1.234 INCHES MINIMUM AND 1.281 INCHES MAXIMUM |
| AASK |
HEAD STYLE |
DOUBLE HEXAGON EXTENDED WASHER |