| CSYM |
SURFACE FINISH |
32.0 MICROINCHES GRIP |
| AASB |
FASTENER LENGTH |
1.245 INCHES MINIMUM AND 1.275 INCHES MAXIMUM |
| AATB |
WIDTH BETWEEN FLATS |
0.312 INCHES NOMINAL |
| THSD |
THREAD SERIES DESIGNATOR |
UNJF |
| CSYM |
SURFACE FINISH |
32.0 MICROINCHES BEARING SURFACE OF HEAD |
| AATD |
EXTENDED WASHER THICKNESS |
0.011 INCHES MINIMUM AND 0.041 INCHES MAXIMUM |
| CQFM |
HARDNESS RATING |
50.0 ROCKWELL C MINIMUM OVERALL AND 56.0 ROCKWELL C MAXIMUM OVERALL |
| AAJD |
THREAD CLASS |
3A |
| AASK |
HEAD STYLE |
SPLINE EXTENDED WASHER |
| AHYM |
NOMINAL THREAD DIAMETER |
0.250 INCHES |
| CMLP |
THREAD QUANTITY PER INCH |
28 |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
AMS6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| CQBC |
MINIMUM TENSILE STRENGTH |
220000 POUNDS PER SQUARE INCH |
| AASA |
THREAD LENGTH |
0.485 INCHES MINIMUM AND 0.535 INCHES MAXIMUM |
| AAUR |
GRIP DIAMETER |
0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM |
| SFTT |
SURFACE TREATMENT |
CADMIUM OVERALL AND CHROMATE OVERALL |
| AATC |
EXTENDED WASHER DIAMETER |
0.460 INCHES MINIMUM AND 0.470 INCHES MAXIMUM |
| MATT |
MATERIAL |
STEEL COMP H11 OVERALL |
| AASU |
HEAD HEIGHT |
0.194 INCHES MINIMUM AND 0.234 INCHES MAXIMUM |
| ANEE |
GRIP LENGTH |
0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
MIL-C-8837,TY 2,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |