screws › tapping screws
AN531-4R6
Aeronautical Standard Tapping Screw
Description
Tapping Screw
Specifications
| Countersink Angle | 80.0 degrees minimum and 82.0 degrees maximum |
|---|---|
| Country of Origin | USA |
| Fastener Length | 0.375 |
| Head Diameter | 0.216 inches minimum and 0.225 inches maximum |
| Head Style | Flat countersunk |
| Internal Drive Style | Cross recess type 1 |
| Length | 3/8 |
| Material | Steel |
| Material Specification | Qq-s-685 cond n fed spec single material response |
| NIIN | 00-167-2374 |
| NSN | 5305-00-167-2374 |
| Nonmachine Thread Diameter | 0.112 |
| Nonmachine Thread Style | Dog type (type b or c) |
| Sold In | Per Package |
| Surface Treatment | Cadmium or zinc |
| Weight | .005 lb |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- AN531-4R6
- AN531-4R8
Cross-reference
No interchangeable or dimensionally similar parts are on record for AN531-4R6. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error