| CQBC |
MINIMUM TENSILE STRENGTH |
180000 POUNDS PER SQUARE INCH |
| MATT |
MATERIAL |
STEEL COMP 4340 OVERALL |
| AASL |
HEAD DIAMETER |
0.625 INCHES NOMINAL |
| AASB |
FASTENER LENGTH |
1.690 INCHES MINIMUM AND 1.730 INCHES MAXIMUM |
| CRZS |
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER |
1.560 INCHES NOMINAL FIRST HOLE |
| AASU |
HEAD HEIGHT |
0.160 INCHES NOMINAL |
| AAJD |
THREAD CLASS |
3A |
| AAWB |
SHANK UNTHREADED HOLE DIAMETER |
0.076 INCHES NOMINAL FIRST HOLE |
| CWYB |
SHOULDER SHAPE |
ROUND FIRST SHOULDER |
| AHYM |
NOMINAL THREAD DIAMETER |
0.250 INCHES |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
FED STD 66 AISI/SAE 4340 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| CMLP |
THREAD QUANTITY PER INCH |
28 |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASA |
THREAD LENGTH |
0.350 INCHES MINIMUM AND 0.380 INCHES MAXIMUM |
| THSD |
THREAD SERIES DESIGNATOR |
UNF |
| CQFM |
HARDNESS RATING |
39.0 ROCKWELL C MINIMUM OVERALL AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| AATB |
WIDTH BETWEEN FLATS |
0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
| AASK |
HEAD STYLE |
ROUND W/WRENCH FLATS |
| SFTT |
SURFACE TREATMENT |
CADMIUM OVERALL AND CHROMATE OVERALL |
| AATX |
SHOULDER LENGTH |
1.340 INCHES MINIMUM FIRST SHOULDER AND 1.350 INCHES MAXIMUM FIRST SHOULDER |
| AATN |
SHOULDER DIAMETER |
0.3116 INCHES MINIMUM FIRST SHOULDER AND 0.3118 INCHES MAXIMUM FIRST SHOULDER |