| THSD |
THREAD SERIES DESIGNATOR |
UNJF |
| AAVH |
SHOULDER DIAMETER |
0.3740 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM |
| AAJD |
THREAD CLASS |
3A |
| SFTT |
SURFACE TREATMENT |
CHROMIUM GRIP |
| AATB |
WIDTH BETWEEN FLATS |
0.625 INCHES NOMINAL |
| AAVK |
SHOULDER LENGTH |
2.540 INCHES NOMINAL |
| AHYM |
NOMINAL THREAD DIAMETER |
0.250 INCHES |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-C-320 FED SPEC 1ST TREATMENT RESPONSE HEAD |
| CMLP |
THREAD QUANTITY PER INCH |
28 |
| AASA |
THREAD LENGTH |
0.340 INCHES MAXIMUM |
| MATT |
MATERIAL |
STEEL COMP XM-12 OVERALL |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AAXC |
CONCENTRIC HOLE DIAMETER |
0.249 INCHES MINIMUM AND 0.255 INCHES MAXIMUM |
| CRZS |
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER |
2.760 INCHES NOMINAL FIRST HOLE |
| CQFM |
HARDNESS RATING |
38.0 ROCKWELL C MINIMUM OVERALL AND 45.0 ROCKWELL C MAXIMUM OVERALL |
| SFTT |
SURFACE TREATMENT |
CHROMIUM HEAD |
| AASU |
HEAD HEIGHT |
0.125 INCHES NOMINAL |
| AAWX |
CONCENTRIC HOLE DEPTH |
2.400 INCHES NOMINAL |
| AAWB |
SHANK UNTHREADED HOLE DIAMETER |
0.075 INCHES MINIMUM FIRST HOLE AND 0.080 INCHES MAXIMUM FIRST HOLE |
| AASB |
FASTENER LENGTH |
2.880 INCHES NOMINAL |
| STYL |
STYLE DESIGNATOR |
CONCENTRIC HOLE UNTHREADED |
| AASK |
HEAD STYLE |
ROUND W/WRENCH FLATS CHAMFERED |
| AASL |
HEAD DIAMETER |
0.750 INCHES NOMINAL |