| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 2A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.750 INCHES NOMINAL |
| AASB | FASTENER LENGTH | 0.750 INCHES NOMINAL |
| AASK | HEAD STYLE | PAN NO. 2 |
| AASL | HEAD DIAMETER | 0.473 INCHES MINIMUM AND 0.492 INCHES MAXIMUM |
| AASU | HEAD HEIGHT | 0.130 INCHES MINIMUM AND 0.144 INCHES MAXIMUM |
| ABQZ | INTERNAL DRIVE STYLE | SLOT |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 20 |
| CYAU | SCREW MATERIAL | STEEL |
| CYAW | SCREW MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-633-CANC FED SPEC SINGLE MATERIAL RESPONSE OR QQ-W-409 MIL SPEC SINGLE MATERIAL RESPONSE |
| CYBA | SCREW SURFACE TREATMENT | CADMIUM AND CHROMATE OR ZINC AND CHROMATE |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| ZZZT | NONDEFINITIVE SPEC/STD DATA | I TYPE AND 9S STYLE |
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