| SFTT |
SURFACE TREATMENT |
ZINC OVERALL |
| AAJD |
THREAD CLASS |
3A |
| CWYB |
SHOULDER SHAPE |
ROUND FIRST SHOULDER |
| AASB |
FASTENER LENGTH |
1.102 INCHES NOMINAL |
| AHYM |
NOMINAL THREAD DIAMETER |
0.250 INCHES |
| AASU |
HEAD HEIGHT |
0.241 INCHES NOMINAL |
| AATX |
SHOULDER LENGTH |
0.695 INCHES MINIMUM FIRST SHOULDER AND 0.697 INCHES MAXIMUM FIRST SHOULDER |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASA |
THREAD LENGTH |
0.313 INCHES MINIMUM |
| FEAT |
SPECIAL FEATURES |
GROOVE 0.180 IN. DIA BY 0.093 IN. WIDE W/0.030 IN. RADIUS BETWEEN SHOULDER AND THREADS,0.035 IN. BY 40 TO 50 DEG CHAMFER ON BOTH ENDS OF THREADS |
| THSD |
THREAD SERIES DESIGNATOR |
UNC |
| MATT |
MATERIAL |
STEEL COMP E4340 OVERALL |
| AASK |
HEAD STYLE |
HEXAGON |
| AATB |
WIDTH BETWEEN FLATS |
0.484 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| AATN |
SHOULDER DIAMETER |
0.310 INCHES MINIMUM FIRST SHOULDER AND 0.312 INCHES MAXIMUM FIRST SHOULDER |
| CMLP |
THREAD QUANTITY PER INCH |
20 |