screws › machine screws
MS35198-16
Military Standard Screw
Description
Fastener Length: 1/2", Thread: 4-40, Thread Length: 1/2"
Specifications
| Countersink Angle | 80.0 degrees minimum and 82.0 degrees maximum |
|---|---|
| Fastener Length | 0.500 |
| Finish | Black Oxide |
| Head Diameter | 0.207 inches minimum and 0.225 inches maximum |
| Head Style | Flat countersunk, Phillips Flat Head |
| Internal Drive Style | Cross recess type 1 |
| Length | 1/2 |
| Material | Brass |
| Screw Material | Copper alloy |
| Size | 4-40 |
| Thread Class | 2a |
| Thread Diameter | 0.112 |
| Thread Direction | Right-hand |
| Thread Length | 0.500 inches minimum |
| Thread Qty | 40 |
| Thread Qty Per Inch (tpi) | 40 |
| Thread Series Designator | UNC |
| Thread Size | 4 |
| Thread Type | N.C. - Coarse |
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.
- MS35190-225 MS #4-40 · 1/2 in · Flat countersunk, Phillips Flat Head · Steel
Looking for a specific part? Use the cross-reference lookup.
Catalog data updated 2026-07-05. Report a data error