| CQBC |
MINIMUM TENSILE STRENGTH |
165000 POUNDS PER SQUARE INCH |
| CQFM |
HARDNESS RATING |
38.0 ROCKWELL C MINIMUM OVERALL AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| AAWB |
SHANK UNTHREADED HOLE DIAMETER |
0.074 INCHES MINIMUM FIRST HOLE AND 0.079 INCHES MAXIMUM FIRST HOLE |
| AASU |
HEAD HEIGHT |
0.188 INCHES MINIMUM AND 0.203 INCHES MAXIMUM |
| AAJD |
THREAD CLASS |
3A |
| CWYB |
SHOULDER SHAPE |
ROUND FIRST SHOULDER |
| AHYM |
NOMINAL THREAD DIAMETER |
0.250 INCHES |
| CMLP |
THREAD QUANTITY PER INCH |
28 |
| AASB |
FASTENER LENGTH |
4.170 INCHES MINIMUM AND 4.190 INCHES MAXIMUM |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| THSD |
THREAD SERIES DESIGNATOR |
UNF |
| AATX |
SHOULDER LENGTH |
3.734 INCHES MINIMUM FIRST SHOULDER AND 3.744 INCHES MAXIMUM FIRST SHOULDER |
| MATT |
MATERIAL |
STEEL COMP E4340 OVERALL |
| AASK |
HEAD STYLE |
HEXAGON |
| SFTT |
SURFACE TREATMENT |
CADMIUM OVERALL AND CHROMATE OVERALL |
| CRZS |
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER |
4.054 INCHES MINIMUM FIRST HOLE AND 4.074 INCHES MAXIMUM FIRST HOLE |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| AATN |
SHOULDER DIAMETER |
0.373 INCHES MINIMUM FIRST SHOULDER AND 0.374 INCHES MAXIMUM FIRST SHOULDER |
| AATB |
WIDTH BETWEEN FLATS |
0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM |
| AASA |
THREAD LENGTH |
0.306 INCHES MINIMUM AND 0.326 INCHES MAXIMUM |