screws › setscrews
AN565EC4H3
Aeronautical Standard Setscrew
Description
Fastener Length: 3/16", Thread: 4-40, Head Width: 1/16", Thread Length: 3/16"
Specifications
| Fastener Length | 0.187 |
|---|---|
| Hardness Rating | 35.0 rockwell c minimum and 45.0 rockwell c maximum |
| Head Style | Headless (setscrew) |
| Internal Drive Style | Hexagon |
| Length | 1/8 |
| Material | Steel |
| Nondefinitive Specification/Std Data | 1 type and 6 style |
| Point Style | Half dog |
| Surface Treatment | Passivate |
| Thread Class | 3a |
| Thread Diameter | 0.112 |
| Thread Direction | Right-hand |
| Thread Length | 0.187 inches minimum |
| Thread Qty | 40 |
| Thread Qty Per Inch (tpi) | 40 |
| Thread Series Designator | UNC |
| Thread Size | 4 |
| Width Across Flats | 0.050 |
Cross-reference
Similar parts
Parts with matching key dimensions — often from a different standards family. Candidates for comparison only; verify the full specification before substituting.
- MS51045-10 MS #4-40 · 1/8 in · Headless (setscrew) · CRES
Looking for a specific part? Use the cross-reference lookup.
Catalog data updated 2026-07-05. Report a data error