bolts › machine bolts
MS20074-04-33
Military Standard Machine Bolt
Description
Length: 3-3/8", Hole Diameter: 1/16", Thread: 1/4-20, drilled head, for engine use, MS20074 series bolt
Specifications
| Fastener Length | 3.406 |
|---|---|
| Features Provided | Finished head |
| Grip Length | 2.875 |
| Hardness Rating | 26.0 rockwell c and 32.0 rockwell c |
| Head Height | Between 0.203 inches and 0.234 inches |
| Head Style | Hexagon Head |
| Hole Configuration Style | Hexagon flats |
| Hole Diameter | 0.070 |
| Hole Quantity | 6 |
| Hole Type | Drilled |
| Material | Steel |
| Min. Tensile Strength (psi) | 125000 pounds per square inch |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Type 2 class 3 federal specification single treatment response qq-p-416 |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.499 |
| Thread Qty | 20 |
| Thread Qty Per Inch (tpi) | 20 |
| Thread Series | UNC |
| Thread Series Designator | Unc (coarse thread) |
| Thread Size | 1/4 |
| Width Between Flats | Between 0.430 inches and 0.439 inches |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
Cross-reference
No interchangeable or dimensionally similar parts are on record for MS20074-04-33. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error