bolts › internal wrenching bolts
MS20004H9
Military Standard Internal Wrenching Bolt
Description
Fastener Length: 1", Hole Diameter: 1/32", Thread: 1/4-28, Head Width: 3/16", Thread Length: 15/32", bevel conical head, drilled, MS20004 series bolt
Specifications
| Drive Style | Hexagon |
|---|---|
| Fastener Length | 1.062 |
| Head Diameter | Between 0.428 inches and 0.438 inches |
| Head Height | 0.250 |
| Head Style | Bevel-conical |
| Hole Configuration Style | Round internal hexagon |
| Hole Diameter | Between 0.037 inches and 0.042 inches |
| Hole Quantity | 4 |
| Hole Type | Drilled |
| Internal Drive Style | Hexagon |
| Material | Steel |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416 ty2 cl2 federal specification single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.475 |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series | UNJF |
| Thread Series Designator | Unjf (fine thread with external controlled root radius) |
| Thread Size | 1/4 |
| Width Across Flats | Between 0.1880 inches and 0.1900 inches |
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 MS20004H9. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error