| FASTENER LENGTH | 1.180 INCHES MINIMUM AND 1.200 INCHES MAXIMUM |
| HEAD HEIGHT | 0.115 INCHES MINIMUM AND 0.125 INCHES MAXIMUM |
| HEAD STYLE | SQUARE |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 7471 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | NICKEL ALLOY UNS N07001 OVERALL |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| SHOULDER DIAMETER | 0.2503 INCHES MINIMUM AND 0.2505 INCHES MAXIMUM SECOND SHOULDER |
| SHOULDER DIAMETER | 0.2526 INCHES MINIMUM AND 0.2532 INCHES MAXIMUM FIRST SHOULDER |
| SHOULDER LENGTH | 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM FIRST SHOULDER |
| SHOULDER SHAPE | ROUND ALL SHOULDERS |
| SHOULDER LENGTH | 0.375 INCHES MINIMUM AND 0.400 INCHES MAXIMUM SECOND SHOULDER |
| SPECIAL FEATURES | CHAMFER UNDERSIDE OF HEAD,45 DEGREE ALL AROUND |
| WIDTH BETWEEN FLATS | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.660 INCHES MINIMUM AND 0.700 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |
| THREAD QUANTITY PER INCH | 28 |