| THREAD SERIES DESIGNATOR | UNF |
| NOMINAL THREAD DIAMETER | 0.625 INCHES |
| THREAD QUANTITY PER INCH | 18 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.543 INCHES NOMINAL |
| FASTENER LENGTH | 2.855 INCHES NOMINAL |
| MATERIAL | TITANIUM ALLOY UNS R54520 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | NAS621, 6AL-4V ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| HEAD STYLE | HEXAGON |
| HEAD HEIGHT | 0.312 INCHES MINIMUM AND |
| 0.327 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.928 INCHES MINIMUM AND |
| 0.940 INCHES MAXIMUM |
| GRIP LENGTH | 2.302 INCHES MINIMUM AND |
| 2.323 INCHES MAXIMUM |
| GRIP DIAMETER | 0.6240 INCHES MINIMUM AND |
| 0.6245 INCHES MAXIMUM |
| SHANK UNTHREADED HOLE DIAMETER | 0.141 INCHES MINIMUM AND |
| 0.151 INCHES MAXIMUM FIRST HOLE |
| SPECIAL FEATURES | UNDRILLED SHANK |
| SPECIFICATION/STANDARD DATA | 80205-NAS1261THRU1265 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |