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AN565A428H8
Aeronautical Standard Setscrew
Description
Fastener Length: 1/2", Thread: 1/4-28, Head Width: 1/8", Thread Length: 1/2"
Specifications
| Fastener Length | Between 0.49 inches and 0.51 inches |
|---|---|
| Hardness Rating | 45.0 rockwell c and 53.0 rockwell c |
| Head Style | Headless (setscrew) |
| Internal Drive Style | Hexagon |
| Length | 1/2 |
| Material | Steel |
| Material Specification | 66 federal standard all material responses |
| Nondefinitive Specification/Std Data | 1 type and 1 style |
| Point Style | Flat |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Cl 2 federal specification single treatment response type 2 qq-p-416 |
| Thread Class | 3a |
| Thread Diameter | 0.25 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.490 inches and 0.510 inches |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series Designator | Unf (fine thread) |
| Thread Size | 1/4 |
| Width Across Flats | Between 0.125 inches and 0.127 inches |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- AN565A428H6
- AN565A428H8
- AN565A428H10
- AN565A428H12
- AN565A428H14
- AN565A428H24
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.
- MS51047-47 MS 1/4-28 · 1/2 in · Headless (setscrew) · CRES
- AN565DC428H8 AN 1/4-28 · 1/2 in · Headless (setscrew) · CRES
Looking for a specific part? Use the cross-reference lookup.
Catalog data updated 2026-07-05. Report a data error