| MRC |
Requirement Statement |
Characteristics |
| CRZS |
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER |
1.256 INCHES MINIMUM FIRST HOLE AND 1.286 INCHES MAXIMUM FIRST HOLE |
| AASB |
FASTENER LENGTH |
1.356 INCHES MINIMUM AND 1.376 INCHES MAXIMUM |
| AAUR |
GRIP DIAMETER |
0.2483 INCHES MINIMUM AND 0.2492 INCHES MAXIMUM |
| ANEE |
GRIP LENGTH |
0.538 INCHES MINIMUM AND 0.954 INCHES MAXIMUM |
| CQFM |
HARDNESS RATING |
36.0 ROCKWELL C MINIMUM OVERALL AND 41.0 ROCKWELL C MAXIMUM OVERALL |
| AASU |
HEAD HEIGHT |
0.126 INCHES MINIMUM AND 0.141 INCHES MAXIMUM |
| AASK |
HEAD STYLE |
DISHED HEXAGON |
| MATT |
MATERIAL |
STEEL COMP E4340 OVERALL OR STEEL COMP 4140 OVERALL OR STEEL COMP 8740 OVERALL OR STEEL COMP 4340 OVERALL OR STEEL COMP 4140 OVERALL OR STEEL COMP 8740 OVERALL OR STEEL COMP 4130 OVERALL OR STEEL COMP 6150 OVERALL |
| AHYM |
NOMINAL THREAD DIAMETER |
0.250 INCHES |
| AAWB |
SHANK UNTHREADED HOLE DIAMETER |
0.076 INCHES MINIMUM FIRST HOLE AND 0.086 INCHES MAXIMUM FIRST HOLE |
| FEAT |
SPECIAL FEATURES |
DETENT RING IN SHANK |
| THSD |
THREAD SERIES DESIGNATOR |
UNF |
| AATB |
WIDTH BETWEEN FLATS |
0.430 INCHES MINIMUM AND 0.439 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 TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SFTT |
SURFACE TREATMENT |
CADMIUM OVERALL AND CHROMATE OVERALL |
| AAJD |
THREAD CLASS |
3A |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASA |
THREAD LENGTH |
0.282 INCHES MINIMUM AND 0.333 INCHES MAXIMUM |
| CMLP |
THREAD QUANTITY PER INCH |
28 |
