| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 2A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.188 INCHES NOMINAL |
| AASB | FASTENER LENGTH | 0.188 INCHES NOMINAL |
| AASK | HEAD STYLE | FLAT COUNTERSUNK |
| AASL | HEAD DIAMETER | 0.156 INCHES MINIMUM AND 0.172 INCHES MAXIMUM |
| ABQZ | INTERNAL DRIVE STYLE | SLOT |
| AHYM | NOMINAL THREAD DIAMETER | 0.086 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 56 |
| CRSQ | COUNTERSINK ANGLE | 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM |
| CYAU | SCREW MATERIAL | COPPER ALLOY 260 OR COPPER ALLOY 268 OR COPPER ALLOY 360 OR COPPER ALLOY 377 |
| CYAW | SCREW MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-611 FED SPEC SINGLE MATERIAL RESPONSE |
| CYBA | SCREW SURFACE TREATMENT | NICKEL |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| ZZZT | NONDEFINITIVE SPEC/STD DATA | 1 TYPE AND 2S STYLE |
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