| MRC |
Requirement Statement |
Characteristics |
| ASDB |
WIDTH ACROSS FLATS |
0.187 INCHES MINIMUM AND 0.189 INCHES MAXIMUM |
| ZZZT |
NONDEFINITIVE SPEC/STD DATA |
1 TYPE AND 11 STYLE |
| SR-1 |
SPEC/STD CONTROLLING DATA |
|
| MATT |
MATERIAL |
STEEL COMP 4135 OR STEEL COMP 4137 OR STEEL COMP 8635 OR STEEL COMP 8640 OVERALL |
| AASK |
HEAD STYLE |
FLAT CHAMFER |
| ABQZ |
INTERNAL DRIVE STYLE |
HEXAGON |
| AAJD |
THREAD CLASS |
3A |
| THSD |
THREAD SERIES DESIGNATOR |
UNF |
| SR-1 |
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE |
FFS86TYPE1STYLE11 |
| SR-1 |
MANUFACTURERS CODE |
81348 |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| CMLP |
THREAD QUANTITY PER INCH |
28 |
| AASU |
HEAD HEIGHT |
0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| AASA |
THREAD LENGTH |
0.500 INCHES NOMINAL |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
QQ-S-624 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| SFTT |
SURFACE TREATMENT |
ZINC OVERALL |
| AASL |
HEAD DIAMETER |
0.367 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| CQHQ |
MINIMUM YIELD STRENGTH |
140000 POUNDS PER SQUARE INCH |
| AHYM |
NOMINAL THREAD DIAMETER |
0.250 INCHES |
| AASB |
FASTENER LENGTH |
0.500 INCHES NOMINAL |
| CQFM |
HARDNESS RATING |
36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL |
