| AATB |
WIDTH BETWEEN FLATS |
0.440 INCHES NOMINAL |
| MATT |
MATERIAL |
STEEL COMP 4130 OVERALL |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| AATX |
SHOULDER LENGTH |
1.280 INCHES NOMINAL FIRST SHOULDER |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-P-416,TY 1,CL 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| CQFM |
HARDNESS RATING |
27.0 ROCKWELL C MINIMUM OVERALL AND 34.0 ROCKWELL C MAXIMUM OVERALL |
| AASU |
HEAD HEIGHT |
0.160 INCHES NOMINAL |
| AAJD |
THREAD CLASS |
3A |
| CWYB |
SHOULDER SHAPE |
ROUND FIRST SHOULDER |
| AHYM |
NOMINAL THREAD DIAMETER |
0.250 INCHES |
| CMLP |
THREAD QUANTITY PER INCH |
28 |
| CQHQ |
MINIMUM YIELD STRENGTH |
100000 POUNDS PER SQUARE INCH |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASA |
THREAD LENGTH |
0.380 INCHES MINIMUM |
| THSD |
THREAD SERIES DESIGNATOR |
UNF |
| AAWB |
SHANK UNTHREADED HOLE DIAMETER |
0.075 INCHES MINIMUM FIRST HOLE AND 0.078 INCHES MAXIMUM FIRST HOLE |
| AASB |
FASTENER LENGTH |
1.660 INCHES NOMINAL |
| AASK |
HEAD STYLE |
HEXAGON |
| CRZS |
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER |
1.510 INCHES NOMINAL FIRST HOLE |
| AATN |
SHOULDER DIAMETER |
0.281 INCHES MINIMUM FIRST SHOULDER AND 0.282 INCHES MAXIMUM FIRST SHOULDER |
| SFTT |
SURFACE TREATMENT |
CADMIUM OVERALL |