MRC | Criteria | Characteristic |
---|---|---|
AAJD | THREAD CLASS | 2A |
AAJF | THREAD DIRECTION | RIGHT-HAND |
AASA | THREAD LENGTH | 0.750 INCHES MAXIMUM |
AASB | FASTENER LENGTH | 0.750 INCHES NOMINAL |
AASK | HEAD STYLE | HEXAGON |
AASU | HEAD HEIGHT | 0.150 INCHES MINIMUM AND 0.428 INCHES MAXIMUM |
AATB | WIDTH BETWEEN FLATS | 0.438 INCHES MAXIMUM |
AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
CMLP | THREAD QUANTITY PER INCH | 20 |
CQBC | MINIMUM TENSILE STRENGTH | 74000 POUNDS PER SQUARE INCH |
CQFM | HARDNESS RATING | 23.0 ROCKWELL B MINIMUM OVERALL AND 80.0 ROCKWELL B MAXIMUM OVERALL |
CSYM | SURFACE FINISH | 125.0 MICROINCHES BEARING SURFACE OF HEAD |
CSYM | SURFACE FINISH | 63.0 MICROINCHES THREADS |
MATT | MATERIAL | STEEL OVERALL |
MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | SAE GR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
THSD | THREAD SERIES DESIGNATOR | UNC |
ZZZT | NONDEFINITIVE SPEC/STD DATA | 2 TYPE AND 1 STYLE AND 2 GRADE |
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