| MRC |
Requirement Statement |
Characteristics |
| AASB |
FASTENER LENGTH |
0.344 INCHES MINIMUM AND 0.406 INCHES MAXIMUM |
| CBBL |
FEATURES PROVIDED |
FINISHED HEAD |
| CQFM |
HARDNESS RATING |
29.0 ROCKWELL C MINIMUM OVERALL AND 35.0 ROCKWELL C MAXIMUM OVERALL |
| AASU |
HEAD HEIGHT |
0.125 INCHES MINIMUM AND 0.135 INCHES MAXIMUM |
| AASK |
HEAD STYLE |
HEXAGON |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATT |
MATERIAL |
STEEL COMP 3135 OVERALL OR STEEL COMP 1335 OVERALL |
| AHYM |
NOMINAL THREAD DIAMETER |
0.250 INCHES |
| AAUM |
LOCKING FEATURE |
DISTORTIONS BEARING SURFACE OF HEAD |
| THSD |
THREAD SERIES DESIGNATOR |
UNF |
| AATB |
WIDTH BETWEEN FLATS |
0.428 INCHES MINIMUM AND 0.437 INCHES MAXIMUM |
| SFTT |
SURFACE TREATMENT |
PHOSPHATE OVERALL |
| AASA |
THREAD LENGTH |
0.250 INCHES MINIMUM |
| AAJD |
THREAD CLASS |
3A |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| CMLP |
THREAD QUANTITY PER INCH |
28 |
