| MRC |
Requirement Statement |
Characteristics |
| AASK |
HEAD STYLE |
UNDERCUT HEXAGON |
| MATT |
MATERIAL |
STEEL COMP E4340 OR STEEL COMP 4340 OR STEEL COMP 8740 OVERALL |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SFTT |
SURFACE TREATMENT |
CADMIUM AND CHROMATE OVERALL |
| AASU |
HEAD HEIGHT |
0.126 INCHES MINIMUM AND 0.141 INCHES MAXIMUM |
| THSD |
THREAD SERIES DESIGNATOR |
UNJF |
| AAJD |
THREAD CLASS |
3A |
| CRZS |
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER |
2.693 INCHES MINIMUM AND 2.723 INCHES MAXIMUM FIRST HOLE |
| ANEE |
GRIP LENGTH |
2.375 INCHES MINIMUM AND 2.391 INCHES MAXIMUM |
| CQFM |
HARDNESS RATING |
36.0 ROCKWELL C MINIMUM AND 41.0 ROCKWELL C MAXIMUM OVERALL |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASA |
THREAD LENGTH |
0.282 INCHES MINIMUM AND 0.333 INCHES MAXIMUM |
| CSYM |
SURFACE FINISH |
32.0 MICROINCHES BEARING SURFACE OF HEAD 32.0 MICROINCHES GRIP |
| CMLP |
THREAD QUANTITY PER INCH |
28 |
| FEAT |
SPECIAL FEATURES |
RETAINING RING ON SHANK |
| AASB |
FASTENER LENGTH |
2.793 INCHES MINIMUM AND 2.813 INCHES MAXIMUM |
| AHYM |
NOMINAL THREAD DIAMETER |
0.250 INCHES |
| AAUR |
GRIP DIAMETER |
0.2483 INCHES MINIMUM AND 0.2492 INCHES MAXIMUM |
| AATB |
WIDTH BETWEEN FLATS |
0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM |
| AAWB |
SHANK UNTHREADED HOLE DIAMETER |
0.076 INCHES MINIMUM AND 0.086 INCHES MAXIMUM FIRST HOLE |
