| AASL |
HEAD DIAMETER |
0.367 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| SFTT |
SURFACE TREATMENT |
CADMIUM OVERALL OR ZINC OVERALL |
| AASA |
THREAD LENGTH |
0.500 INCHES MAXIMUM |
| CQHQ |
MINIMUM YIELD STRENGTH |
130000 POUNDS PER SQUARE INCH |
| AAJD |
THREAD CLASS |
3A |
| AHYM |
NOMINAL THREAD DIAMETER |
0.250 INCHES |
| CMLP |
THREAD QUANTITY PER INCH |
28 |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASK |
HEAD STYLE |
FLAT CHAMFER |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
66 FED STD ALL MATERIAL RESPONSES OVERALL |
| AASU |
HEAD HEIGHT |
0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| AASB |
FASTENER LENGTH |
0.500 INCHES NOMINAL |
| THSD |
THREAD SERIES DESIGNATOR |
UNF |
| ZZZT |
NONDEFINITIVE SPEC/STD DATA |
6 TYPE |
| MATT |
MATERIAL |
STEEL COMP 4140 OVERALL OR STEEL COMP 8630 OVERALL OR STEEL COMP 4037 OVERALL OR STEEL COMP 4137 OVERALL OR STEEL COMP 8740 OVERALL |
| CQFM |
HARDNESS RATING |
36.0 ROCKWELL C MINIMUM OVERALL AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| ASDB |
WIDTH ACROSS FLATS |
0.187 INCHES MINIMUM AND 0.189 INCHES MAXIMUM |
| ABQZ |
INTERNAL DRIVE STYLE |
HEXAGON |