| MRC |
Requirement Statement |
Characteristics |
| CRZS |
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER |
2.297 INCHES NOMINAL FIRST HOLE |
| AASB |
FASTENER LENGTH |
2.453 INCHES MINIMUM AND 2.500 INCHES MAXIMUM |
| AAUR |
GRIP DIAMETER |
0.3112 INCHES MINIMUM AND 0.3117 INCHES MAXIMUM |
| ANEE |
GRIP LENGTH |
1.938 INCHES NOMINAL |
| CQFM |
HARDNESS RATING |
26.0 ROCKWELL C MINIMUM FASTENER AND 32.0 ROCKWELL C MAXIMUM FASTENER |
| AASU |
HEAD HEIGHT |
0.172 INCHES MINIMUM AND 0.204 INCHES MAXIMUM |
| AASK |
HEAD STYLE |
HEXAGON |
| MATT |
MATERIAL |
STEEL COMP 8740 FASTENER OR STEEL COMP 8630 FASTENER OR STEEL COMP 8735 FASTENER OR STEEL COMP 8735 FASTENER OR STEEL COMP 4037 FASTENER OR STEEL COMP 4140 FASTENER OR STEEL COMP 4130 FASTENER |
| CQBC |
MINIMUM TENSILE STRENGTH |
125000 POUNDS PER SQUARE INCH |
| AHYM |
NOMINAL THREAD DIAMETER |
0.312 INCHES |
| AAWB |
SHANK UNTHREADED HOLE DIAMETER |
0.076 INCHES NOMINAL FIRST HOLE |
| THSD |
THREAD SERIES DESIGNATOR |
UNF |
| AATB |
WIDTH BETWEEN FLATS |
0.490 INCHES MINIMUM AND 0.502 INCHES MAXIMUM |
| CSYM |
SURFACE FINISH |
63.0 MICROINCHES BEARING SURFACE OF HEAD |
| CSYM |
SURFACE FINISH |
63.0 MICROINCHES GRIP |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-P-416 TYPE 2 CLASS 3 FED SPEC ALL TREATMENT RESPONSES FASTENER |
| SFTT |
SURFACE TREATMENT |
CADMIUM FASTENER AND CHROMATE FASTENER |
| AAJD |
THREAD CLASS |
3A |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASA |
THREAD LENGTH |
0.499 INCHES MINIMUM AND 0.578 INCHES MAXIMUM |
| CMLP |
THREAD QUANTITY PER INCH |
24 |
