| MRC |
Requirement Statement |
Characteristics |
| AASB |
FASTENER LENGTH |
0.968 INCHES MINIMUM AND 1.032 INCHES MAXIMUM |
| CBBL |
FEATURES PROVIDED |
FINISHED HEAD |
| CQFM |
HARDNESS RATING |
96.0 ROCKWELL B MINIMUM OVERALL AND 104.0 ROCKWELL B MAXIMUM OVERALL |
| AASU |
HEAD HEIGHT |
0.125 INCHES MINIMUM AND 0.135 INCHES MAXIMUM |
| AASK |
HEAD STYLE |
HEXAGON |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
QQ-S-634 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATT |
MATERIAL |
STEEL COMP 1035 OVERALL |
| CQBC |
MINIMUM TENSILE STRENGTH |
95000 POUNDS PER SQUARE INCH |
| CQHQ |
MINIMUM YIELD STRENGTH |
85000 POUNDS PER SQUARE INCH |
| AHYM |
NOMINAL THREAD DIAMETER |
0.250 INCHES |
| AAUM |
LOCKING FEATURE |
DISTORTIONS BEARING SURFACE OF HEAD |
| AATB |
WIDTH BETWEEN FLATS |
0.428 INCHES MINIMUM AND 0.437 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 |
2A |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASA |
THREAD LENGTH |
0.750 INCHES MINIMUM AND 0.938 INCHES MAXIMUM |
| CMLP |
THREAD QUANTITY PER INCH |
20 |
| THSD |
THREAD SERIES DESIGNATOR |
UNC |
