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AN502-416-20
Aeronautical Standard Screw
Description
Fastener Length: 1-1/4", Hole Diameter: ", Thread: 1/4-28, Thread Length: 1-13/64"
Specifications
| Fastener Length | 1.250 |
|---|---|
| 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 | Cross recess type 1 |
| Length | 1 1/4 |
| 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 | 1.039 inches minimum and 1.204 inches maximum |
| 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.
Cross-reference
No interchangeable or dimensionally similar parts are on record for AN502-416-20. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error