| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
MIL-P-16232 TY 1 CL 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| AATX |
SHOULDER LENGTH |
0.680 INCHES MINIMUM FIRST SHOULDER AND 0.700 INCHES MAXIMUM FIRST SHOULDER |
| MATT |
MATERIAL |
STEEL COMP 4140 OVERALL |
| AASU |
HEAD HEIGHT |
0.250 INCHES MINIMUM AND 0.280 INCHES MAXIMUM |
| CWYB |
SHOULDER SHAPE |
ROUND FIRST SHOULDER |
| AHYM |
NOMINAL THREAD DIAMETER |
0.500 INCHES |
| AATB |
WIDTH BETWEEN FLATS |
1.000 INCHES NOMINAL |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| CQFM |
HARDNESS RATING |
35.0 ROCKWELL C MINIMUM OVERALL AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| AASA |
THREAD LENGTH |
0.360 INCHES MINIMUM AND 0.470 INCHES MAXIMUM |
| THSD |
THREAD SERIES DESIGNATOR |
UNF |
| AAJD |
THREAD CLASS |
2A |
| AASK |
HEAD STYLE |
HEXAGON |
| AASB |
FASTENER LENGTH |
1.120 INCHES MINIMUM AND 1.190 INCHES MAXIMUM |
| SFTT |
SURFACE TREATMENT |
PHOSPHATE OVERALL |
| AATN |
SHOULDER DIAMETER |
0.6850 INCHES MINIMUM FIRST SHOULDER AND 0.6870 INCHES MAXIMUM FIRST SHOULDER |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| CMLP |
THREAD QUANTITY PER INCH |
20 |