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C305-4-11
Bolt
Description
Fastener Length: 1-7/32", Thread: 1/4-28, Thread Length: 35/64"
Specifications
| Extended Washer Diameter | 0.465 inches minimum and 0.475 inches maximum |
|---|---|
| Extended Washer Thickness | 0.042 |
| Fastener Length | 1.203 inches minimum and 1.233 inches maximum |
| Grip Diameter | 0.2485 inches minimum and 0.2495 inches maximum |
| Grip Length | 0.677 inches minimum and 0.697 inches maximum |
| Hardness Rating | 51.0 rockwell c minimum and 54.0 rockwell c maximum |
| Head Height | 0.254 |
| Head Style | Double hexagon w/hole |
| Length | 1 7/32 |
| Material | Steel |
| Material Specification | Ams 6485 assn std single material response or ams6487 assn std single material response |
| Min. Tensile Strength (psi) | 260000 pounds per square inch |
| Specification Data | 56878-ewb26 manufacturers standard |
| Surface Treatment | Nickel and cadmium |
| Surface Treatment Specification | Mil-c-8837,ty 2,cl 3 mil spec 1st treatment response or ams 2416 assn std 2nd treatment response or ams 2416 assn std 3rd treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.506 inches minimum and 0.556 inches maximum |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series Designator | UNJF |
| Thread Size | 1/4 |
| Width Between Flats | 0.304 inches minimum and 0.313 inches maximum |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- C305-4-11
- C305-4-17
Cross-reference
No interchangeable or dimensionally similar parts are on record for C305-4-11. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error