| THSD |
THREAD SERIES DESIGNATOR |
UNJF |
| MATT |
MATERIAL |
STEEL COMP E4340 OVERALL OR STEEL COMP 4130 OVERALL OR STEEL COMP 4140 OVERALL OR STEEL COMP 8740 OVERALL OR STEEL COMP 6150 OVERALL |
| AATB |
WIDTH BETWEEN FLATS |
0.741 INCHES MINIMUM AND 0.752 INCHES MAXIMUM |
| AASA |
THREAD LENGTH |
0.641 INCHES MINIMUM AND 0.671 INCHES MAXIMUM |
| AAJD |
THREAD CLASS |
3A |
| CSYM |
SURFACE FINISH |
63.0 MICROINCHES GRIP |
| AHYM |
NOMINAL THREAD DIAMETER |
0.500 INCHES |
| AASB |
FASTENER LENGTH |
2.021 INCHES MINIMUM AND 2.041 INCHES MAXIMUM |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| CQFM |
HARDNESS RATING |
36.0 ROCKWELL C MINIMUM OVERALL AND 41.0 ROCKWELL C MAXIMUM OVERALL |
| CSYM |
SURFACE FINISH |
63.0 MICROINCHES BEARING SURFACE OF HEAD |
| FEAT |
SPECIAL FEATURES |
RETAINING ELEMENT IN SHANK |
| AASK |
HEAD STYLE |
DISHED HEXAGON |
| AAWB |
SHANK UNTHREADED HOLE DIAMETER |
0.106 INCHES MINIMUM FIRST HOLE AND 0.116 INCHES MAXIMUM FIRST HOLE |
| AAUR |
GRIP DIAMETER |
0.4982 INCHES MINIMUM AND 0.4991 INCHES MAXIMUM |
| SFTT |
SURFACE TREATMENT |
CADMIUM OVERALL AND CHROMATE OVERALL |
| AASU |
HEAD HEIGHT |
0.251 INCHES MINIMUM AND 0.266 INCHES MAXIMUM |
| ANEE |
GRIP LENGTH |
1.375 INCHES MINIMUM AND 1.391 INCHES MAXIMUM |
| CMLP |
THREAD QUANTITY PER INCH |
20 |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| CRZS |
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER |
1.776 INCHES MINIMUM FIRST HOLE AND 1.806 INCHES MAXIMUM FIRST HOLE |