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AN505-4R5
Aeronautical Standard Machine Screw
Description
Fastener Length: 5/16", Thread: 4-40
Specifications
| Countersink Angle | 80.0 degrees minimum and 82.0 degrees maximum |
|---|---|
| Fastener Length | 0.3125 |
| Head Diameter | 0.200 inches minimum and 0.225 inches maximum |
| Head Style | Flat countersunk |
| Internal Drive Style | Cross recess type 1 |
| Length | 5/16 |
| Material | Steel |
| Nondefinitive Specification/Std Data | Iii type and 2c style and i design and ii design |
| Screw Material | Steel comp 1010 |
| Screw Material Specification | Qq-s-633 fs1010 fed spec single material response |
| Screw Surface Treatment | Cadmium |
| Screw Surface Treatment Specification | Qq-p-416 fed spec single treatment response |
| Thread Class | 2a |
| Thread Diameter | 0.112 |
| Thread Direction | Right-hand |
| Thread Length | 0.2455 inches minimum |
| Thread Qty | 40 |
| Thread Qty Per Inch (tpi) | 40 |
| Thread Series Designator | UNC |
| Thread Size | 4 |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- AN505-4R4
- AN505-4R5
Cross-reference
No interchangeable or dimensionally similar parts are on record for AN505-4R5. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error