| MRC |
Requirement Statement |
Characteristics |
| CSYT |
CHAMFER ANGLE |
15.0 DEGREES MAXIMUM |
| AASB |
FASTENER LENGTH |
1.379 INCHES NOMINAL |
| AASU |
HEAD HEIGHT |
0.219 INCHES MINIMUM AND 0.234 INCHES MAXIMUM |
| AASK |
HEAD STYLE |
HEXAGON |
| MATT |
MATERIAL |
STEEL CORROSION RESISTING OVERALL |
| CQBC |
MINIMUM TENSILE STRENGTH |
15900 POUNDS PER SQUARE INCH |
| AHYM |
NOMINAL THREAD DIAMETER |
0.438 INCHES |
| AAWB |
SHANK UNTHREADED HOLE DIAMETER |
0.106 INCHES NOMINAL THREADS |
| AATN |
SHOULDER DIAMETER |
0.499 INCHES MINIMUM FIRST SHOULDER AND 0.500 INCHES MAXIMUM FIRST SHOULDER |
| AATX |
SHOULDER LENGTH |
0.760 INCHES NOMINAL FIRST SHOULDER |
| CWYB |
SHOULDER SHAPE |
ROUND FIRST SHOULDER |
| FEAT |
SPECIAL FEATURES |
DRILLED SHANK HOLE IS 0.201 IN. FROM BOTTOM END |
| THSD |
THREAD SERIES DESIGNATOR |
UNJF |
| AATB |
WIDTH BETWEEN FLATS |
0.678 INCHES MINIMUM AND 0.690 INCHES MAXIMUM |
| AAJD |
THREAD CLASS |
3A |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASA |
THREAD LENGTH |
0.529 INCHES MINIMUM AND 0.554 INCHES MAXIMUM |
| CMLP |
THREAD QUANTITY PER INCH |
20 |
