| AATB |
WIDTH BETWEEN FLATS |
0.544 INCHES MINIMUM AND 0.562 INCHES MAXIMUM |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-P-416,TY 2,CL 3 FED SPEC 1ST TREATMENT RESPONSE OVERALL OR QQ-Z-325,TY 2,CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL |
| SFTT |
SURFACE TREATMENT |
CADMIUM OVERALL OR ZINC OVERALL |
| CBBL |
FEATURES PROVIDED |
FINISHED HEAD |
| ZZZT |
NONDEFINITIVE SPEC/STD DATA |
1 TYPE AND 1 GRADE |
| AASK |
HEAD STYLE |
SQUARE |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
SAE GR 1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| CQBC |
MINIMUM TENSILE STRENGTH |
60000 POUNDS PER SQUARE INCH |
| MATT |
MATERIAL |
STEEL OVERALL |
| AASA |
THREAD LENGTH |
1.250 INCHES MINIMUM |
| CMLP |
THREAD QUANTITY PER INCH |
16 |
| THSD |
THREAD SERIES DESIGNATOR |
UNC |
| AASB |
FASTENER LENGTH |
7.320 INCHES MINIMUM AND 7.600 INCHES MAXIMUM |
| AAJD |
THREAD CLASS |
2A |
| AHYM |
NOMINAL THREAD DIAMETER |
0.375 INCHES |
| AASU |
HEAD HEIGHT |
0.232 INCHES MINIMUM AND 0.268 INCHES MAXIMUM |
| CQFM |
HARDNESS RATING |
70.0 ROCKWELL B MINIMUM OVERALL AND 100.0 ROCKWELL B MAXIMUM OVERALL |