| SFTT |
SURFACE TREATMENT |
ZINC OVERALL |
| ASDB |
WIDTH ACROSS FLATS |
0.078 INCHES NOMINAL |
| AHYM |
NOMINAL THREAD DIAMETER |
0.086 INCHES |
| AAUM |
LOCKING FEATURE |
PATCH THREADS |
| CQBC |
MINIMUM TENSILE STRENGTH |
180000 POUNDS PER SQUARE INCH |
| CQHQ |
MINIMUM YIELD STRENGTH |
155000 POUNDS PER SQUARE INCH |
| AASL |
HEAD DIAMETER |
0.134 INCHES MINIMUM AND 0.140 INCHES MAXIMUM |
| AASK |
HEAD STYLE |
FILLISTER |
| AASA |
THREAD LENGTH |
0.500 INCHES NOMINAL |
| FEAT |
SPECIAL FEATURES |
CRITICAL ITEM HYDROGEN EMBRITTLEMENT RELIEF REQUIRED |
| AAJD |
THREAD CLASS |
3A |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-Z-325,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| CQFM |
HARDNESS RATING |
38.0 ROCKWELL C MINIMUM OVERALL AND 45.0 ROCKWELL C MAXIMUM OVERALL |
| AASB |
FASTENER LENGTH |
0.500 INCHES NOMINAL |
| MATT |
MATERIAL |
STEEL OVERALL |
| THSD |
THREAD SERIES DESIGNATOR |
UNC |
| AASU |
HEAD HEIGHT |
0.083 INCHES MINIMUM AND 0.086 INCHES MAXIMUM |
| CMLP |
THREAD QUANTITY PER INCH |
56 |
| ABQZ |
INTERNAL DRIVE STYLE |
HEXAGON |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
66 FED STD SINGLE MATERIAL RESPONSE OVERALL |