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AN520-10R4
Aeronautical Standard Screw
Description
Fastener Length: 1/4", Thread: 10-32, Thread Length: 1/4"
Specifications
| Fastener Length | 0.219 inches minimum and 0.250 inches maximum |
|---|---|
| Head Diameter | 0.334 inches minimum and 0.359 inches maximum |
| Head Height | 0.137 inches maximum |
| Head Style | Round Head |
| Internal Drive Style | Cross recess type 1 |
| Length | 1/4 |
| Material | Steel |
| Min. Tensile Strength (psi) | 55000 pounds per square inch |
| Screw Material | Steel or steel comp 1010 |
| Screw Material Specification | Qq-s-630 fed spec 2nd material response or qq-s-631 fed spec 2nd material response or qq-s-634 fed spec 2nd 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 | 0.190 |
| Thread Direction | Right-hand |
| Thread Length | 0.188 inches minimum and 0.250 inches maximum |
| Thread Qty | 32 |
| Thread Qty Per Inch (tpi) | 32 |
| Thread Series Designator | UNF |
| Thread Size | 10 |
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 AN520-10R4. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error