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AN520B0-4
Aeronautical Standard Screw
Description
Fastener Length: 1/4", Thread: 0-80, Thread Length: 1/4"
Specifications
| Fastener Length | 0.219 inches minimum and 0.250 inches maximum |
|---|---|
| Head Diameter | 0.099 inches minimum and 0.113 inches maximum |
| Head Height | 0.053 inches maximum |
| Head Style | Round Head |
| Internal Drive Style | Cross recess type 1 |
| Length | 1/4 |
| Min. Tensile Strength (psi) | 55000 pounds per square inch |
| Screw Material | Copper alloy |
| Screw Material Specification | Qq-b-613 fed spec 1st material response and qq-b-626 fed spec 2nd material response |
| Thread Class | 2a |
| Thread Diameter | 0.060 |
| Thread Direction | Right-hand |
| Thread Length | 0.250 inches maximum |
| Thread Qty | 80 |
| Thread Qty Per Inch (tpi) | 80 |
| Thread Series Designator | UNF |
Cross-reference
No interchangeable or dimensionally similar parts are on record for AN520B0-4. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error