| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
ASTM B633, TYPE 2, CLASS FE/ZM 5 ASSN STD ALL TREATMENT RESPONSES FASTENER |
| AAUM |
LOCKING FEATURE |
PATCH THREADS |
| CQBC |
MINIMUM TENSILE STRENGTH |
180000 POUNDS PER SQUARE INCH |
| CQHQ |
MINIMUM YIELD STRENGTH |
155000 POUNDS PER SQUARE INCH |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
MIL-F-18240 MIL SPEC SINGLE MATERIAL RESPONSE LOCKING FEATURE |
| ASDB |
WIDTH ACROSS FLATS |
0.141 INCHES NOMINAL |
| MATT |
MATERIAL |
PLASTIC POLYAMIDE LOCKING FEATURE |
| AAJD |
THREAD CLASS |
3A |
| MATT |
MATERIAL |
STEEL BEARING SURFACE OF HEAD |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AHYM |
NOMINAL THREAD DIAMETER |
0.164 INCHES |
| AASK |
HEAD STYLE |
FLAT CHAMFER |
| AASU |
HEAD HEIGHT |
0.159 INCHES MINIMUM AND 0.164 INCHES MAXIMUM |
| THSD |
THREAD SERIES DESIGNATOR |
UNC |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
ASTM A574, 1300 SERIES ASSN STD ALL MATERIAL RESPONSES FASTENER |
| ABQZ |
INTERNAL DRIVE STYLE |
HEXAGON |
| AASA |
THREAD LENGTH |
0.313 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| CQFM |
HARDNESS RATING |
39.0 ROCKWELL C MINIMUM OVERALL AND 45.0 ROCKWELL C MAXIMUM OVERALL |
| AASL |
HEAD DIAMETER |
0.262 INCHES MINIMUM AND 0.270 INCHES MAXIMUM |
| CMLP |
THREAD QUANTITY PER INCH |
32 |
| AASB |
FASTENER LENGTH |
0.375 INCHES NOMINAL |
| SFTT |
SURFACE TREATMENT |
ZINC FASTENER AND CHROMATE FASTENER |