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AN503-416-8
Aeronautical Standard Screw
Description
Fastener Length: 15/32", Hole Diameter: 1/16", Thread: 1/4-20, Thread Length: 13/32"
Specifications
| Fastener Length | 0.469 inches minimum and 0.500 inches maximum |
|---|---|
| Hardness Rating | 26.0 rockwell c minimum and 32.0 rockwell c maximum |
| Head Diameter | 0.389 inches minimum and 0.414 inches maximum |
| Head Height | 0.161 inches minimum and 0.170 inches maximum |
| Head Hole Configuration Style | Round |
| Head Style | Fillister |
| Hole Diameter | 0.062 |
| Hole Quantity | 1 |
| Internal Drive Style | Slot |
| Length | 1/2 |
| Material | Steel |
| Min. Tensile Strength (psi) | 125000 pounds per square inch |
| Screw Material | Steel comp 8630 |
| Screw Material Specification | Mil-s-6050 mil spec single material response or an-s-9 mil std single material response |
| Screw Surface Treatment | Cadmium |
| Screw Surface Treatment Specification | Qq-p-416,ty 1,cl 3 fed spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.391 inches minimum and 0.454 inches maximum |
| Thread Qty | 20 |
| Thread Qty Per Inch (tpi) | 20 |
| Thread Series Designator | UNC |
| Thread Size | 1/4 |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- AN503-416-8
- AN503-416-10
- AN503-416-12
- AN503-416-14
Cross-reference
No interchangeable or dimensionally similar parts are on record for AN503-416-8. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error