screws › machine screws
AN531-6R12
Aeronautical Standard Screw
Description
Fastener Length: 3/4"
Specifications
| Countersink Angle | 80.0 degrees minimum and 82.0 degrees maximum |
|---|---|
| Fastener Length | 0.750 |
| Features Provided | Casehardened |
| Head Diameter | 0.244 inches minimum and 0.279 inches maximum |
| Head Style | Flat countersunk |
| Internal Drive Style | Cross recess type 1 |
| Length | 3/4 |
| Material | Steel |
| Nonmachine Thread Diameter | 0.138 |
| Nonmachine Thread Style | Dog type (type b or c) |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416 ty 2 cl 3 fed spec all treatment responses |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- AN531-6R4
- AN531-6R12
Cross-reference
Similar parts
Parts with matching key dimensions — often from a different standards family. Candidates for comparison only; verify the full specification before substituting.
- MS35492-30 MS 3/4 in · Flat countersunk · Steel
- AN550-6-6 AN 3/4 in · Flat countersunk · Steel
Looking for a specific part? Use the cross-reference lookup.
Catalog data updated 2026-07-05. Report a data error