| MRC |
Requirement Statement |
Characteristics |
| AASB |
FASTENER LENGTH |
0.970 INCHES MINIMUM AND 1.020 INCHES MAXIMUM |
| CQFM |
HARDNESS RATING |
23.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL |
| AASU |
HEAD HEIGHT |
0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM |
| AASK |
HEAD STYLE |
HEXAGON |
| CQBC |
MINIMUM TENSILE STRENGTH |
120000 POUNDS PER SQUARE INCH |
| CQHQ |
MINIMUM YIELD STRENGTH |
90000 POUNDS PER SQUARE INCH |
| AHYM |
NOMINAL THREAD DIAMETER |
0.250 INCHES |
| ZZZT |
NONDEFINITIVE SPEC/STD DATA |
1 TYPE |
| CXCY |
III PART NAME ASSIGNED BY CONTROLLING AGENCY |
SCREW,CAP,HEXAGON HEAD |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
66 FED STD ALL MATERIAL RESPONSES OVERALL |
| AATB |
WIDTH BETWEEN FLATS |
0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
ASTM B633 ASSN STD SINGLE TREATMENT RESPONSE OR ASTM B454 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| SFTT |
SURFACE TREATMENT |
ZINC AND CHROMATE OVERALL |
| AAJD |
THREAD CLASS |
2A |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASA |
THREAD LENGTH |
0.870 INCHES MINIMUM AND 1.020 INCHES MAXIMUM |
| CMLP |
THREAD QUANTITY PER INCH |
20 |
| THSD |
THREAD SERIES DESIGNATOR |
UNC |
