| MATT |
MATERIAL |
STEEL COMP 4140 OVERALL OR STEEL COMP 3135 OVERALL |
| AAJD |
THREAD CLASS |
3A |
| AATB |
WIDTH BETWEEN FLATS |
0.562 INCHES NOMINAL |
| AASA |
THREAD LENGTH |
0.350 INCHES MAXIMUM |
| CWYB |
SHOULDER SHAPE |
ROUND FIRST SHOULDER |
| AHYM |
NOMINAL THREAD DIAMETER |
0.250 INCHES |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OVERALL OR AM 6330 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASB |
FASTENER LENGTH |
2.160 INCHES NOMINAL |
| THSD |
THREAD SERIES DESIGNATOR |
UNF |
| AASU |
HEAD HEIGHT |
0.188 INCHES NOMINAL |
| AATX |
SHOULDER LENGTH |
1.810 INCHES NOMINAL FIRST SHOULDER |
| AASK |
HEAD STYLE |
HEXAGON |
| AAWB |
SHANK UNTHREADED HOLE DIAMETER |
0.075 INCHES MINIMUM FIRST HOLE AND 0.080 INCHES MAXIMUM FIRST HOLE |
| CMLP |
THREAD QUANTITY PER INCH |
1/4-28 |
| AATN |
SHOULDER DIAMETER |
0.3733 INCHES MINIMUM FIRST SHOULDER AND 0.3742 INCHES MAXIMUM FIRST SHOULDER |
| CRZS |
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER |
1.980 INCHES NOMINAL FIRST HOLE |
| SFTT |
SURFACE TREATMENT |
NICKEL OVERALL |