| EXTENDED WASHER DIAMETER | 0.399 INCHES NOMINAL0.399 INCHES NOMINAL |
| FASTENER LENGTH | 0.750 INCHES NOMINAL0.750 INCHES NOMINAL |
| HEAD HEIGHT | 0.172 INCHES NOMINAL0.172 INCHES NOMINAL |
| HEAD STYLE | HEXAGON EXTENDED WASHERHEXAGON EXTENDED WASHER |
| INTERNAL DRIVE STYLE | W/O INTERNAL DRIVEW/O INTERNAL DRIVE |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | HEX HEAD SCREW;DRILLING SCREW FOR METALHEX HEAD SCREW;DRILLING SCREW FOR METAL |
| MATERIAL | STEEL OVERALL |
| NOMINAL THREAD DIAMETER | 0.1900 INCHES0.1900 INCHES |
| NONMACHINE THREAD STYLE | SELF DRILLINGSELF DRILLING |
| PILOT LENGTH | 0.250 INCHES NOMINAL0.250 INCHES NOMINAL |
| POINT STYLE | SELF-DRILLINGSELF-DRILLING |
| POINT LENGTH | 0.250 INCHES NOMINAL0.250 INCHES NOMINAL |
| WIDTH BETWEEN FLATS | 0.3125 INCHES NOMINAL0.3125 INCHES NOMINAL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | WEATHER RESISTANT COATING MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| THREAD CLASS | 2A2A |
| THREAD DIRECTION | RIGHT-HANDRIGHT-HAND |
| THREAD QUANTITY PER INCH | 2424 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |