| AHYM |
NOMINAL THREAD DIAMETER |
0.190 INCHES |
| AAWB |
SHANK UNTHREADED HOLE DIAMETER |
0.070 INCHES NOMINAL FIRST HOLE |
| CSYM |
SURFACE FINISH |
32.0 MICROINCHES GRIP |
| AASL |
HEAD DIAMETER |
0.297 INCHES MINIMUM AND 0.302 INCHES MAXIMUM |
| MATT |
MATERIAL |
STEEL COMP 4340 OVERALL OR STEEL COMP 4140 OVERALL OR STEEL COMP E4340 OVERALL OR STEEL COMP 8740 OVERALL |
| CQBC |
MINIMUM TENSILE STRENGTH |
180000 POUNDS PER SQUARE INCH |
| THSD |
THREAD SERIES DESIGNATOR |
UNJF |
| CQFM |
HARDNESS RATING |
40.0 ROCKWELL C MINIMUM OVERALL AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| AAJD |
THREAD CLASS |
3A |
| AASA |
THREAD LENGTH |
0.250 INCHES MINIMUM AND 0.317 INCHES MAXIMUM |
| CRZS |
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER |
1.143 INCHES MINIMUM FIRST HOLE AND 1.190 INCHES MAXIMUM FIRST HOLE |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASK |
HEAD STYLE |
FLAT COUNTERSUNK |
| AAUR |
GRIP DIAMETER |
0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM |
| ZZZK |
SPECIFICATION/STANDARD DATA |
76823-51B581 MANUFACTURERS STANDARD |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-P-416,TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SFTT |
SURFACE TREATMENT |
CADMIUM OVERALL AND CHROMATE OVERALL |
| ABQZ |
INTERNAL DRIVE STYLE |
OFFSET CRUCIFORM (TORQUE SET) |
| AASB |
FASTENER LENGTH |
1.260 INCHES MINIMUM AND 1.307 INCHES MAXIMUM |
| CMLP |
THREAD QUANTITY PER INCH |
32 |
| ANEE |
GRIP LENGTH |
0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM |
| CRSQ |
COUNTERSINK ANGLE |
99.5 DEGREES MINIMUM AND 100.5 DEGREES MAXIMUM |