Product Description: steel material, Thread Length: 0.286-0.363", Head Height: 0.133-0.15"
Product Description: steel material, Thread Length: 0.286-0.363", Head Height: 0.133-0.15"
| Material | Steel comp 4140 or steel comp e4340 or steel comp 6150 or steel comp 8735 or steel comp 8740 |
| Distance From Head Largest Surface To Shank Hole Center | 1.175 inches minimum first hole and 1.242 inches maximum first hole |
| Surface Finish | 32 microinches grip |
| Minimum Tensile Strength | 180000 pounds per square inch |
| Grip Length | 0.985 inches minimum and 1.015 inches maximum |
| Thread Quantity Per Inch | 28 |
| Nominal Thread Diameter | 0.25 inches |
| Shank Unthreaded Hole Diameter | 0.076 inches first hole |
| Internal Drive Style | Offset cruciform (torque set) |
| Grip Diameter | 0.2485 inches minimum and 0.2495 inches maximum |
| Head Diameter | 0.464 inches minimum and 0.488 inches maximum |
| Head Style | Pan |
| Fastener Length | 1.301 inches minimum and 1.348 inches maximum |
| Head Height | 0.133 inches minimum and 0.15 inches maximum |
| Thread Length | 0.286 inches minimum and 0.363 inches maximum |
| Thread Direction | Right-hand |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Document and Classification | Qq-p-416, type 2, class 3 fed spec single treatment response |
| Thread Class | 3a |
| Thread Series Designator | Unjf |
| Specification/standard Data | 76823-51b222 manufacturers standard |
| Material Document and Classification | Mil-s-5626 mil spec 1st material response or mil-s-5000 mil spec 2nd material response or mil-s-8503 mil spec 3rd material response or mil-s-6098 mil spec 4th material response or mil-s-6049 mil spec 5th material response |
| Part Number | Manufacturer | |
|---|---|---|
| 51B222-16H | Northrop Grumman Technical Services, | Quote |
| 51B222-16H | Northrop Grumman Systems Corporation | Quote |