bolts › internal wrenching bolts
MS20006-42
Military Standard Internal Wrenching Bolt
Description
Fastener Length: 3-1/4", Thread: 3/8-24, Head Width: 5/16", Thread Length: 11/16"
Specifications
| Fastener Length | 3.312 |
|---|---|
| Hardness Rating | 36.0 rockwell c minimum and 40.0 rockwell c maximum |
| Head Diameter | 0.639 inches minimum and 0.649 inches maximum |
| Head Height | 0.375 |
| Head Style | Bevel-conical |
| Internal Drive Style | Hexagon |
| Length | 3 1/4 |
| Material | Steel |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Surface Treatment | Cadmium |
| Thread Class | 3a |
| Thread Diameter | 0.375 |
| Thread Direction | Right-hand |
| Thread Length | 0.688 |
| Thread Qty | 24 |
| Thread Qty Per Inch (tpi) | 24 |
| Thread Series Designator | UNF |
| Thread Size | 3/8 |
| Width Across Flats | 0.313 inches minimum and 0.315 inches maximum |
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.
- MS20006-44 MS 3/8-24 · 0.099 in · Bevel-conical · Steel
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Catalog data updated 2026-07-05. Report a data error