| CHAMFER ANGLE | 45.0 DEGREES NOMINAL |
| FASTENER LENGTH | 1.070 INCHES MINIMUM AND 1.090 INCHES MAXIMUM |
| HEAD HEIGHT | 0.115 INCHES MINIMUM AND 0.125 INCHES MAXIMUM |
| HEAD LENGTH | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM |
| HEAD STYLE | SQUARE |
| MATERIAL DOCUMENT AND CLASSIFICATION | C50TF13 CL-B MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | NICKEL ALLOY 718 OVERALL |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.570 INCHES NOMINAL |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |
| WIDTH BETWEEN FLATS | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM |