| SFTT |
SURFACE TREATMENT |
CADMIUM OVERALL OR CHROMATE OVERALL |
| AHYM |
NOMINAL THREAD DIAMETER |
0.190 INCHES |
| AASA |
THREAD LENGTH |
0.420 INCHES MINIMUM AND 0.460 INCHES MAXIMUM |
| MATT |
MATERIAL |
STEEL COMP 4140 OVERALL OR STEEL COMP 8740 OVERALL OR STEEL COMP E4340 OVERALL OR STEEL COMP 6150 OVERALL |
| CQBC |
MINIMUM TENSILE STRENGTH |
180000 POUNDS PER SQUARE INCH |
| THSD |
THREAD SERIES DESIGNATOR |
UNJF |
| AAJD |
THREAD CLASS |
3A |
| AATC |
EXTENDED WASHER DIAMETER |
0.340 INCHES MINIMUM AND 0.360 INCHES MAXIMUM |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| AATD |
EXTENDED WASHER THICKNESS |
0.045 INCHES MINIMUM AND 0.065 INCHES MAXIMUM |
| AASU |
HEAD HEIGHT |
0.255 INCHES MINIMUM AND 0.275 INCHES MAXIMUM |
| AAUR |
GRIP DIAMETER |
0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM |
| CQFM |
HARDNESS RATING |
39.0 ROCKWELL C MINIMUM OVERALL AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| AATB |
WIDTH BETWEEN FLATS |
0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM |
| CMLP |
THREAD QUANTITY PER INCH |
32 |
| ANEE |
GRIP LENGTH |
0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM |
| AASB |
FASTENER LENGTH |
0.805 INCHES MINIMUM AND 0.825 INCHES MAXIMUM |
| AASK |
HEAD STYLE |
DOUBLE HEXAGON W/HOLE |