| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 2A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.875 INCHES MINIMUM |
| AASB | FASTENER LENGTH | 1.938 INCHES NOMINAL |
| AASK | HEAD STYLE | FLAT CHAMFER |
| AASL | HEAD DIAMETER | 0.750 INCHES NOMINAL |
| AASU | HEAD HEIGHT | 0.307 INCHES MINIMUM AND 0.312 INCHES MAXIMUM |
| ABQZ | INTERNAL DRIVE STYLE | SLOT |
| AHYM | NOMINAL THREAD DIAMETER | 0.500 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 20 |
| CQFM | HARDNESS RATING | 26.6 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM |
| CYAU | SCREW MATERIAL | STEEL |
| FEAT | SPECIAL FEATURES | FURNISHED W/1 CASTELLATED HEX NUT,1 LOCKWASHER AND 1 COTTER PIN |
| THSD | THREAD SERIES DESIGNATOR | UNF |
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