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AN505C6-4
Aeronautical Standard Machine Screw
Description
Fastener Length: 7/32", Thread: 6-32, Thread Length: 11/64"
Specifications
| Countersink Angle | 80.0 degrees minimum and 82.0 degrees maximum |
|---|---|
| Fastener Length | 0.219 inches minimum and 0.250 inches maximum |
| Head Diameter | 0.259 inches minimum and 0.279 inches maximum |
| Head Style | Flat countersunk |
| Internal Drive Style | Slot |
| Length | 1/4 |
| Material | Steel |
| Nondefinitive Specification/Std Data | I type and 2s style |
| Screw Material | Steel comp 430 or steel comp 302 |
| Screw Material Specification | Qq-s-763,class 4 fed spec 1st material response or mil-s-7720,comp fm or g mil spec 2nd material response |
| Screw Surface Treatment | Paint |
| Thread Class | 2a |
| Thread Diameter | 0.138 |
| Thread Direction | Right-hand |
| Thread Length | 0.167 |
| Thread Qty | 32 |
| Thread Qty Per Inch (tpi) | 32 |
| Thread Series Designator | UNC |
| Thread Size | 6 |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
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.
- MS51959-26B MS #6-32 · 1/4 in · Flat countersunk · CRES
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Catalog data updated 2026-07-05. Report a data error