bolts › internal wrenching bolts
MS20004H8
Military Standard Internal Wrenching Bolt
Description
Internal Wrenching Bolt
Specifications
| Fastener Length | 0.985 inches minimum and 1.015 inches maximum |
|---|---|
| Hardness Rating | 34.0 rockwell c minimum and 40.0 rockwell c maximum |
| Head Diameter | 0.428 inches minimum and 0.438 inches maximum |
| Head Height | 0.250 |
| Head Style | Bevel-conical |
| Hole Configuration Style | Round longitudinal hole |
| Hole Diameter | 0.037 |
| Hole Quantity | 4 |
| Hole Type | Drilled |
| Internal Drive Style | Hexagon |
| Material | Steel |
| Material Specification | Mil-s-5626 mil spec 1st material response or mil-s-5000 mil spec 2nd material response or mil-s-8503 mil spec 3rd material response or mil-s-6098 mil spec 4th material response or mil-s-6049 mil spec 5th material response |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416 ty 2 clss 2 fed spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.475 inches minimum and 0.525 inches maximum |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series Designator | UNF |
| Width Across Flats | 0.188 inches minimum and 0.190 inches maximum |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- MS20004H6
- MS20004H8
- MS20004H9
- MS20004H10
- MS20004H70
Cross-reference
No interchangeable or dimensionally similar parts are on record for MS20004H8. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error