| AASA |
THREAD LENGTH |
0.278 INCHES NOMINAL |
| THSD |
THREAD SERIES DESIGNATOR |
UNJF |
| AASB |
FASTENER LENGTH |
1.740 INCHES MINIMUM AND 1.760 INCHES MAXIMUM |
| AAJD |
THREAD CLASS |
3A |
| AATX |
SHOULDER LENGTH |
0.170 INCHES MINIMUM FIRST SHOULDER AND 0.210 INCHES MAXIMUM FIRST SHOULDER |
| CWYB |
SHOULDER SHAPE |
ROUND FIRST SHOULDER |
| AHYM |
NOMINAL THREAD DIAMETER |
0.250 INCHES |
| CMLP |
THREAD QUANTITY PER INCH |
28 |
| AATC |
EXTENDED WASHER DIAMETER |
0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM |
| AATN |
SHOULDER DIAMETER |
0.3095 INCHES MINIMUM FIRST SHOULDER AND 0.3105 INCHES MAXIMUM FIRST SHOULDER |
| AATB |
WIDTH BETWEEN FLATS |
0.3125 INCHES NOMINAL |
| AASU |
HEAD HEIGHT |
0.293 INCHES MINIMUM AND 0.313 INCHES MAXIMUM |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AATD |
EXTENDED WASHER THICKNESS |
0.060 INCHES NOMINAL |
| MATT |
MATERIAL |
STEEL OVERALL |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
AMS 7477 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| AASK |
HEAD STYLE |
DOUBLE HEXAGON EXTENDED WASHER |