| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| FASTENER LENGTH | 0.750 INCHES NOMINAL |
| HEAD DIAMETER | 0.390 INCHES NOMINAL |
| HEAD STYLE | FLAT COUNTERSUNK |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| MATERIAL | STEEL COMP 1022 FASTENER |
| MATERIAL | STEEL COMP 1050 PRIMARY WASHER |
| NOMINAL THREAD DIAMETER | 0.190 INCHES |
| PRIMARY WASHER OUTSIDE DIAMETER | 0.640 INCHES MINIMUM AND 0.660 INCHES MAXIMUM |
| PRIMARY WASHER STYLE | DOME INTERNAL TEETH |
| PRIMARY WASHER MATERIAL THICKNESS | 0.015 INCHES MINIMUM AND 0.021 INCHES MAXIMUM |
| SPECIAL FEATURES | SUBASSEMBLY IS EQUIPMENT INSTL-MISC EMER; REFER TO BOEING I.P.C. BOE2319 25-64-53-33 NO. 120 |
| WASHER QUANTITY | 1 |
| SPECIFICATION/STANDARD DATA | BACS212N MANUFACTURERS SPECIFICATION |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 32 |
| THREAD SERIES DESIGNATOR | UNF |