| NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER | 10001 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.650 INCHES MINIMUM AND 1.750 INCHES MAXIMUM |
| FASTENER LENGTH | 1.750 INCHES NOMINAL |
| HEAD STYLE | FLAT CHAMFER |
| HEAD DIAMETER | 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| HEAD HEIGHT | 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| LOCKING FEATURE | PATCH THREADS |
| INTERNAL DRIVE STYLE | HEXAGON |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| WIDTH ACROSS FLATS | 0.188 INCHES NOMINAL |
| THREAD QUANTITY PER INCH | 20 |
| MINIMUM TENSILE STRENGTH | 170000 POUNDS PER SQUARE INCH |
| HARDNESS RATING | 38.0 ROCKWELL C MINIMUM OVERALL AND 45.0 ROCKWELL C MAXIMUM OVERALL |
| MINIMUM YIELD STRENGTH | 150000 POUNDS PER SQUARE INCH |
| SURFACE FINISH | 32.0 MICROINCHES THREADS |
| SURFACE FINISH | 63.0 MICROINCHES BEARING SURFACE OF HEAD |
| SURFACE FINISH | 63.0 MICROINCHES GRIP |
| MATERIAL | STEEL OVERALL |
| SURFACE TREATMENT | ZINC OVERALL AND CHROMATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM B633,TY 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| THREAD SERIES DESIGNATOR | UNC |
| An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE. |
