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MRC | Criteria | Characteristic |
---|---|---|
AAJD | THREAD CLASS | 3A |
AASA | THREAD LENGTH | 1.000 INCHES MAXIMUM |
AASB | FASTENER LENGTH | 1.000 INCHES NOMINAL |
AASK | HEAD STYLE | FLAT CHAMFER |
AASL | HEAD DIAMETER | 0.429 INCHES MINIMUM AND 0.438 INCHES MAXIMUM |
AASU | HEAD HEIGHT | 0.306 INCHES MINIMUM AND 0.312 INCHES MAXIMUM |
ABQZ | INTERNAL DRIVE STYLE | HEXAGON |
AHYM | NOMINAL THREAD DIAMETER | 0.312 INCHES |
ASDB | WIDTH ACROSS FLATS | 0.218 INCHES MINIMUM AND 0.220 INCHES MAXIMUM |
CMLP | THREAD QUANTITY PER INCH | 18 |
CQFM | HARDNESS RATING | 36.0 ROCKWELL C MINIMUM OVERALL AND 43.0 ROCKWELL C MAXIMUM OVERALL |
CQHQ | MINIMUM YIELD STRENGTH | 140000 POUNDS PER SQUARE INCH |
MATT | MATERIAL | STEEL OVERALL |
SFTT | SURFACE TREATMENT | CADMIUM OVERALL OR ZINC OVERALL |
THSD | THREAD SERIES DESIGNATOR | UNC |
257-00011-36 | 257-00 | 257-00002 | 257-00011-25 |
257-0.125-S-6 | 257-00002 | 257-00011-1 | 257-0.125-S-6 |
257-00011-41 | 257-00011-36 | 257-00011 | 257-00011-25 |
257-00011-12 | 257-00011-41 | 257-00011-12 | 257-00011-12 |
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