| FASTENER LENGTH | 0.625 INCHES NOMINAL |
| HEAD DIAMETER | 0.1329 INCHES MINIMUM AND 0.1380 INCHES MAXIMUM |
| HEAD HEIGHT | 0.134 INCHES MINIMUM AND 0.138 INCHES MAXIMUM |
| HEAD STYLE | FLAT CHAMFER |
| INTERNAL DRIVE STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS5731 OR AMS5737 PER FF-S-86 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | IRON ALLOY 660 OVERALL |
| III PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW,CAP,SOCKET HEAD |
| PROPRIETARY CHARACTERISTICS | PACS |
| NOMINAL THREAD DIAMETER | 0.1380 INCHES |
| SPECIFICATION/STANDARD DATA | 01417-LS1091335 MANUFACTURERS SPECIFICATION |
| WIDTH ACROSS FLATS | 0.109 INCHES NOMINAL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | FE/ZN5 PER LS1091284-1 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | ZINC ALLOY OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.625 INCHES NOMINAL |
| THREAD QUANTITY PER INCH | 32 |
| THREAD SERIES DESIGNATOR | UNRC |