screws › machine screws
AN505C4-9
Aeronautical Standard Screw
Description
Fastener Length: 9/16", Thread: 4-40, Thread Length: 33/64"
Specifications
| Countersink Angle | 80.0 degrees minimum and 82.0 degrees maximum |
|---|---|
| Fastener Length | 0.562 |
| Head Diameter | 0.195 inches minimum and 0.225 inches maximum |
| Head Style | Flat countersunk |
| Internal Drive Style | Cross recess type 1 |
| Length | 1/2 |
| Material | CRES |
| Min. Tensile Strength (psi) | 80000 pounds per square inch |
| Nondefinitive Specification/Std Data | 1 type and 2s style |
| Screw Material | Steel corrosion resisting |
| Screw Material Specification | 66 fed std single material response |
| Screw Surface Treatment | Passivate |
| Screw Surface Treatment Specification | Qq-p-35 fed spec single treatment response |
| Thread Class | 2a |
| Thread Diameter | 0.112 |
| Thread Direction | Right-hand |
| Thread Length | 0.512 inches minimum and 0.562 inches maximum |
| Thread Qty | 40 |
| Thread Qty Per Inch (tpi) | 40 |
| Thread Series Designator | UNC |
| Thread Size | 4 |
Cross-reference
No interchangeable or dimensionally similar parts are on record for AN505C4-9. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error