| MRC | Criteria | Characteristic |
|---|---|---|
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.531 INCHES MINIMUM |
| AASB | FASTENER LENGTH | 0.906 INCHES NOMINAL |
| AASK | HEAD STYLE | HEXAGON EXTENDED WASHER |
| AASU | HEAD HEIGHT | 0.375 INCHES NOMINAL |
| AATB | WIDTH BETWEEN FLATS | 0.438 INCHES NOMINAL |
| AATC | EXTENDED WASHER DIAMETER | 0.646 INCHES MINIMUM AND 0.656 INCHES MAXIMUM |
| AATD | EXTENDED WASHER THICKNESS | 0.141 INCHES NOMINAL |
| AAWC | FIRST DIAMETER FROM HEAD | 0.410 INCHES MINIMUM AND 0.420 INCHES MAXIMUM |
| AAWD | SECOND DIAMETER FROM HEAD | 0.430 INCHES MINIMUM AND 0.434 INCHES MAXIMUM |
| AAWH | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.094 INCHES NOMINAL |
| AAWJ | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 0.375 INCHES NOMINAL |
| CFSG | NONSTANDARD THREAD PITCH DIAMETER | +0.4071/+0.4104 INCHES |
| CSNG | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 3 |
| MATT | MATERIAL | STEEL OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
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