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MS3212-1
Military Standard Machine Screw
Description
Fastener Length: 1/4", Thread: 4-40, Thread Length: 1/4
Specifications
| Fastener Length | 0.250 |
|---|---|
| Features Provided | O ring |
| Head Diameter | 0.238 |
| Head Height | 0.080 |
| Head Style | Watertight |
| Internal Drive Style | Cross recess type 1 |
| Length | 1/4 |
| Material | CRES |
| Screw Material | Steel corrosion resisting |
| Screw Surface Treatment | Passivate |
| Thread Class | 2a |
| Thread Diameter | 0.112 |
| Thread Direction | Right-hand |
| Thread Length | 0.250 inches maximum |
| Thread Qty | 40 |
| Thread Qty Per Inch (tpi) | 40 |
| Thread Series Designator | UNC |
| Thread Size | 4 |
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.
- MS3213-1 MS #4-40 · 1/4 in · Watertight · Steel
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Catalog data updated 2026-07-05. Report a data error