| AATB |
WIDTH BETWEEN FLATS |
0.875 INCHES NOMINAL |
| SFTT |
SURFACE TREATMENT |
ZINC OVERALL |
| CRZS |
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER |
1.140 INCHES NOMINAL FIRST HOLE |
| CWYB |
SHOULDER SHAPE |
ROUND FIRST SHOULDER |
| AHYM |
NOMINAL THREAD DIAMETER |
0.500 INCHES |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASB |
FASTENER LENGTH |
1.312 INCHES NOMINAL |
| AASA |
THREAD LENGTH |
0.687 INCHES MINIMUM |
| FEAT |
SPECIAL FEATURES |
3/64 IN. RADIUS UNDER-CUT AT SHOULDER 1/32 IN. BY 45 DEG CHAMFER AT THD END |
| AASU |
HEAD HEIGHT |
0.469 INCHES NOMINAL |
| AAWB |
SHANK UNTHREADED HOLE DIAMETER |
0.107 INCHES NOMINAL FIRST HOLE |
| AATN |
SHOULDER DIAMETER |
0.6230 INCHES MINIMUM FIRST SHOULDER AND 0.6250 INCHES MAXIMUM FIRST SHOULDER |
| THSD |
THREAD SERIES DESIGNATOR |
UNF |
| AAJD |
THREAD CLASS |
2A |
| AASK |
HEAD STYLE |
HEXAGON |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-Z-325,TY 1,CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
QQ-S-631 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| CMLP |
THREAD QUANTITY PER INCH |
20 |
| AATX |
SHOULDER LENGTH |
0.625 INCHES NOMINAL FIRST SHOULDER |