bolts › machine bolts
EWB0420-4-8
Bolt
Description
Fastener Length: 0-63/64", Thread: 1/4-28, Thread Length: 31/64"
Specifications
| Extended Washer Diameter | 0.423 inches minimum and 0.443 inches maximum |
|---|---|
| Extended Washer Thickness | 0.059 inches minimum and 0.069 inches maximum |
| Fastener Length | 0.972 inches minimum and 1.002 inches maximum |
| Grip Diameter | 0.2485 inches minimum and 0.2495 inches maximum |
| Grip Length | 0.490 inches minimum and 0.510 inches maximum |
| Head Height | 0.290 inches minimum and 0.310 inches maximum |
| Head Style | Double hexagon extended washer |
| Length | 0 63/64 |
| Material | Iron |
| Material Specification | Ams 5737 assn std single material response |
| Min. Tensile Strength (psi) | 200000 pounds per square inch |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.487 inches minimum |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series Designator | UNJF |
| Thread Size | 1/4 |
| Width Between Flats | 0.306 inches minimum and 0.315 inches maximum |
Cross-reference
No interchangeable or dimensionally similar parts are on record for EWB0420-4-8. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error