| AATB |
WIDTH BETWEEN FLATS |
0.688 INCHES NOMINAL |
| AAXC |
CONCENTRIC HOLE DIAMETER |
0.339 INCHES MINIMUM AND 0.349 INCHES MAXIMUM |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
G-1010 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| THSD |
THREAD SERIES DESIGNATOR |
UNJF |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-C-320 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| AAJD |
THREAD CLASS |
3A |
| AHYM |
NOMINAL THREAD DIAMETER |
0.250 INCHES |
| AASB |
FASTENER LENGTH |
3.324 INCHES MINIMUM AND 3.329 INCHES MAXIMUM |
| CMLP |
THREAD QUANTITY PER INCH |
28 |
| AAWX |
CONCENTRIC HOLE DEPTH |
2.860 INCHES NOMINAL |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASU |
HEAD HEIGHT |
0.125 INCHES NOMINAL |
| MATT |
MATERIAL |
STEEL OVERALL |
| AAVH |
SHOULDER DIAMETER |
0.4965 INCHES MINIMUM AND 0.4985 INCHES MAXIMUM |
| SFTT |
SURFACE TREATMENT |
CHROMIUM OVERALL |
| CQFM |
HARDNESS RATING |
46.0 ROCKWELL C MINIMUM OVERALL AND 49.0 ROCKWELL C MAXIMUM OVERALL |
| AAWB |
SHANK UNTHREADED HOLE DIAMETER |
0.075 INCHES MINIMUM FIRST HOLE AND 0.080 INCHES MAXIMUM FIRST HOLE |
| AASL |
HEAD DIAMETER |
0.875 INCHES NOMINAL |
| AASA |
THREAD LENGTH |
0.339 INCHES MAXIMUM |
| STYL |
STYLE DESIGNATOR |
CONCENTRIC HOLE UNTHREADED |
| AASK |
HEAD STYLE |
ROUND W/WRENCH FLATS CHAMFERED |
| AAVK |
SHOULDER LENGTH |
2.985 INCHES MINIMUM AND 2.990 INCHES MAXIMUM |
| CRZS |
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER |
3.184 INCHES MINIMUM FIRST HOLE AND 3.189 INCHES MAXIMUM FIRST HOLE |