| AASA |
THREAD LENGTH |
0.418 INCHES MINIMUM AND 0.438 INCHES MAXIMUM |
| AATN |
SHOULDER DIAMETER |
0.308 INCHES MINIMUM ALL SHOULDERS AND 0.310 INCHES MAXIMUM ALL SHOULDERS |
| AATX |
SHOULDER LENGTH |
0.445 INCHES MINIMUM ALL SHOULDERS AND 0.455 INCHES MAXIMUM ALL SHOULDERS |
| MATT |
MATERIAL |
STEEL COMP 4037 OVERALL OR STEEL COMP 8630 OVERALL OR STEEL COMP 8740 OVERALL |
| AASK |
HEAD STYLE |
FLUSH |
| CQBC |
MINIMUM TENSILE STRENGTH |
160000 POUNDS PER SQUARE INCH |
| AAJD |
THREAD CLASS |
3A |
| CWYB |
SHOULDER SHAPE |
ROUND FIRST SHOULDER |
| AHYM |
NOMINAL THREAD DIAMETER |
0.250 INCHES |
| AASB |
FASTENER LENGTH |
0.923 INCHES MINIMUM AND 0.933 INCHES MAXIMUM |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-P-416,TY2,CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| THSD |
THREAD SERIES DESIGNATOR |
UNC |
| AASL |
HEAD DIAMETER |
0.419 INCHES MINIMUM AND 0.437 INCHES MAXIMUM |
| ABQZ |
INTERNAL DRIVE STYLE |
HEXAGON |
| SFTT |
SURFACE TREATMENT |
CADMIUM OVERALL AND CHROMATE OVERALL |
| ASDB |
WIDTH ACROSS FLATS |
0.156 INCHES NOMINAL |
| CMLP |
THREAD QUANTITY PER INCH |
20 |
| AASU |
HEAD HEIGHT |
0.209 INCHES MINIMUM AND 0.219 INCHES MAXIMUM |
| CQFM |
HARDNESS RATING |
32.0 ROCKWELL C MINIMUM OVERALL AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
66 FED STD SINGLE MATERIAL RESPONSE OVERALL |