| FASTENER LENGTH | 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM |
| FEATURES PROVIDED | FINISHED HEAD |
| HEAD HEIGHT | 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| HOLE CONFIGURATION STYLE | HEXAGON FLATS |
| HOLE DIAMETER | 0.070 INCHES NOMINAL |
| HOLE QUANTITY | 1 |
| HOLE TYPE | DRILLED |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | IRON ALLOY 660 OVERALL |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| NONSTANDARD THREAD PITCH DIAMETER | +0.2117 TO 0.2175 INCHES |
| PRECIOUS MATERIAL | SILVER |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE FINISH | 32.0 MICROINCHES SIDES OF HEAD |
| SURFACE FINISH | 32.0 MICROINCHES TOP OF HEAD |
| SURFACE FINISH | 63.0 MICROINCHES BEARING SURFACE OF HEAD |
| SURFACE TREATMENT | SILVER OVERALL |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 20 |
| THREAD SERIES DESIGNATOR | UNS |
| WIDTH BETWEEN FLATS | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM |