| AATB |
WIDTH BETWEEN FLATS |
0.616 INCHES MINIMUM AND 0.627 INCHES MAXIMUM |
| THSD |
THREAD SERIES DESIGNATOR |
UNJF |
| AASB |
FASTENER LENGTH |
1.880 INCHES NOMINAL |
| AAJD |
THREAD CLASS |
3A |
| AASU |
HEAD HEIGHT |
0.300 INCHES NOMINAL |
| CSNG |
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY |
1 |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| CQFM |
HARDNESS RATING |
35.0 ROCKWELL C MINIMUM OVERALL AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| CRZS |
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER |
1.680 INCHES NOMINAL FIRST HOLE |
| AAWH |
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER |
1.100 INCHES MINIMUM AND 1.150 INCHES MAXIMUM |
| MATT |
MATERIAL |
STEEL OVERALL |
| AASK |
HEAD STYLE |
HEXAGON |
| AAWC |
FIRST DIAMETER FROM HEAD |
0.400 INCHES MINIMUM AND 0.410 INCHES MAXIMUM |
| AASA |
THREAD LENGTH |
0.680 INCHES MINIMUM |
| AHYM |
NOMINAL THREAD DIAMETER |
0.438 INCHES |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-P-416,TY 1,CL B PER HS 74 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
MIL-S-6049 PER AMS 6322 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| CMLP |
THREAD QUANTITY PER INCH |
20 |
| AAWB |
SHANK UNTHREADED HOLE DIAMETER |
0.093 INCHES MINIMUM FIRST HOLE AND 0.099 INCHES MAXIMUM FIRST HOLE |
| SFTT |
SURFACE TREATMENT |
CADMIUM OVERALL |