| TEST |
TEST DATA DOCUMENT |
81349-MIL-I-6870 SPECIFICATION |
| CQBC |
MINIMUM TENSILE STRENGTH |
180000 POUNDS PER SQUARE INCH |
| AHYM |
NOMINAL THREAD DIAMETER |
0.625 INCHES |
| MATT |
MATERIAL |
STEEL COMP 4140 OVERALL |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
CVA5-2,FSCM 80378 MFR REF 1ST TREATMENT RESPONSE OVERALL |
| CRZS |
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER |
1.800 INCHES NOMINAL FIRST HOLE |
| AATN |
SHOULDER DIAMETER |
0.7499 INCHES MINIMUM FIRST SHOULDER AND 0.7504 INCHES MAXIMUM FIRST SHOULDER |
| AASA |
THREAD LENGTH |
0.460 INCHES MINIMUM AND 0.470 INCHES MAXIMUM |
| AASU |
HEAD HEIGHT |
0.100 INCHES NOMINAL |
| CMLP |
THREAD QUANTITY PER INCH |
18 |
| AAJD |
THREAD CLASS |
3A |
| CWYB |
SHOULDER SHAPE |
ROUND FIRST SHOULDER |
| SFTT |
SURFACE TREATMENT |
CADMIUM OVERALL OR CHROMIUM OVERALL |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASB |
FASTENER LENGTH |
1.960 INCHES NOMINAL |
| THSD |
THREAD SERIES DESIGNATOR |
UNF |
| AATX |
SHOULDER LENGTH |
1.490 INCHES MINIMUM FIRST SHOULDER AND 1.500 INCHES MAXIMUM FIRST SHOULDER |
| CQFM |
HARDNESS RATING |
39.0 ROCKWELL C MINIMUM OVERALL AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| AASK |
HEAD STYLE |
HEXAGON |
| AATB |
WIDTH BETWEEN FLATS |
1.063 INCHES NOMINAL |
| AAWB |
SHANK UNTHREADED HOLE DIAMETER |
0.129 INCHES NOMINAL FIRST HOLE |