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STD3061-05
Machine Bolt
Description
Fastener Length: 7/16", Hole Diameter: 3/64", Thread: 1/4-28, Thread Length: 23/64
Specifications
| Extended Washer Diameter | 0.375 |
|---|---|
| Extended Washer Thickness | Between 0.060 inches and 0.070 inches |
| Fastener Length | 0.438 |
| Features Provided | Finished head |
| Grip Length | Between 0.079 inches and 0.099 inches |
| Hardness Rating | 248.0 brinell standard and 341.0 brinell standard |
| Head Height | 0.260 |
| Head Style | Double hexagon w/hole |
| Hole Configuration Style | Double hexagon longitudinal hole |
| Hole Diameter | 0.047 |
| Hole Quantity | 4 |
| Hole Type | Drilled |
| Length | 7/16 |
| Material | Iron |
| Material Specification | Ams 5732 assn standard single material response |
| Min. Tensile Strength (psi) | 130000 pounds per square inch |
| Minimum Yield Strength | 85000 pounds per square inch |
| Surface Finish | 32.0 microinches bearing surface of head, 32.0 microinches grip |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.339 inches and 0.359 inches |
| 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 Between Flats | Between 0.243 inches and 0.251 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 STD3061-05. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error