| MRC |
Requirement Statement |
Characteristics |
| AASB |
FASTENER LENGTH |
2.234 INCHES MINIMUM AND 2.266 INCHES MAXIMUM |
| CBBL |
FEATURES PROVIDED |
UNFINISHED HEAD |
| CQFM |
HARDNESS RATING |
28.0 ROCKWELL C MINIMUM OVERALL AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| AASU |
HEAD HEIGHT |
0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM |
| AASK |
HEAD STYLE |
HEXAGON |
| MATT |
MATERIAL |
STEEL COMP 1340 OVERALL OR STEEL COMP 4140 OVERALL OR STEEL COMP 8640 OVERALL OR STEEL COMP 8740 OVERALL |
| AHYM |
NOMINAL THREAD DIAMETER |
0.875 INCHES |
| AAUM |
LOCKING FEATURE |
DISTORTIONS BEARING SURFACE OF HEAD |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
AISI/SAE ASSN STD ALL MATERIAL RESPONSES OVERALL |
| THSD |
THREAD SERIES DESIGNATOR |
UNF |
| AATB |
WIDTH BETWEEN FLATS |
1.108 INCHES MINIMUM AND 1.125 INCHES MAXIMUM |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-P-416,TY 1,CL 3 FED SPEC 1ST TREATMENT RESPONSE OVERALL OR QQ-Z-325,TY 1,CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL |
| SFTT |
SURFACE TREATMENT |
CADMIUM OVERALL OR ZINC OVERALL |
| AAJD |
THREAD CLASS |
3A |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASA |
THREAD LENGTH |
0.797 INCHES MINIMUM AND 0.828 INCHES MAXIMUM |
| CMLP |
THREAD QUANTITY PER INCH |
14 |
