| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.438 INCHES MINIMUM |
| AASB | FASTENER LENGTH | 0.688 INCHES NOMINAL |
| AASK | HEAD STYLE | FLAT COUNTERSUNK |
| AASL | HEAD DIAMETER | 0.500 INCHES NOMINAL |
| ABQZ | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 28 |
| CQBC | MINIMUM TENSILE STRENGTH | 125000 POUNDS PER SQUARE INCH |
| CQFM | HARDNESS RATING | 27.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| CRSQ | COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL |
| CYAU | SCREW MATERIAL | STEEL COMP 4037 |
| CYAW | SCREW MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-8695 MIL SPEC SINGLE MATERIAL RESPONSE |
| CYBA | SCREW SURFACE TREATMENT | CADMIUM |
| THSD | THREAD SERIES DESIGNATOR | UNF |
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