| AASU |
HEAD HEIGHT |
0.544 INCHES MINIMUM AND 0.582 INCHES MAXIMUM |
| AATB |
WIDTH BETWEEN FLATS |
0.729 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |
| AASA |
THREAD LENGTH |
2.500 INCHES MINIMUM |
| ZZZT |
NONDEFINITIVE SPEC/STD DATA |
1SSJST4 TYPE |
| MATT |
MATERIAL |
STEEL COMP 4137 OVERALL OR STEEL COMP 4037 OVERALL OR STEEL COMP 8630 OVERALL OR STEEL COMP 4140 OVERALL OR STEEL COMP 8740 OVERALL |
| CQFM |
HARDNESS RATING |
45.0 ROCKWELL C MINIMUM OVERALL AND 53.0 ROCKWELL C MAXIMUM OVERALL |
| ABQJ |
POINT STYLE |
CUP |
| AASB |
FASTENER LENGTH |
2.500 INCHES NOMINAL |
| ABQZ |
INTERNAL DRIVE STYLE |
W/O INTERNAL DRIVE |
| AASK |
HEAD STYLE |
SQUARE |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
66 FED STD ALL MATERIAL RESPONSES OVERALL |
| THSD |
THREAD SERIES DESIGNATOR |
UNC |
| AAJD |
THREAD CLASS |
2A |
| AHYM |
NOMINAL THREAD DIAMETER |
0.750 INCHES |
| ZZZX |
DEPARTURE FROM CITED DESIGNATOR |
AS MODIFIED BY THREAD CLASS |
| CMLP |
THREAD QUANTITY PER INCH |
10 |