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AN501A416-8
Aeronautical Standard Screw
Description
Fastener Length: 1/2", Hole Diameter: ", Thread: 1/4-28, Thread Length: 1/2"
Specifications
| Fastener Length | 0.500 |
|---|---|
| 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) | 60000 pounds per square inch |
| Nondefinitive Specification/Std Data | 1 type and 5s style |
| Screw Material | Steel comp 1010 |
| Screw Material Specification | Qq-s-633 fed spec 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 | 2a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.500 inches minimum |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series Designator | UNF |
| Thread Size | 1/4 |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- AN501A416-5
- AN501A416-7
- AN501A416-8
- AN501A416-10
- AN501A416-28
Cross-reference
Interchangeable
Parts that share a National Stock Number or are listed as an alternate for AN501A416-8 — functionally equivalent.
- MS35266-79 Listed alternate 1/4-28 · 1/2 in · Drilled Fillister Head · Steel
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Catalog data updated 2026-07-05. Report a data error