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Washers provide a smooth bearing surface and are used under the head of a bolt and/or a nut. The chemical, mechanical, and dimensional requirements for hardened washers are covered under the ASTM specification F436. These washers are through hardened or carburized to add strength, but are physically smaller than They are the recommended washer for any fastener other than a low carbon steel bolt..
Size
| 1/4”-4“ |
Materials
| 45# |
| 50# |
| 40Cr |
Finish
| Zinc Plated |
| Black |
| Hot dip galvanized |
| Mechanical galvanized |
Appliction
| Used in many industries: energy, transportation, marine, mining ,construction and bridge construction, manufacturing, processing, shipbuilding, forestry and agriculture, heavy vehicles and military. |
Advantages
| The highest security performance |
| To prevent the vibration and dynamic load caused by loosening |
| Easy to install and remove |
| Locking effect is not affected by lubrication |
| Regardless of the level of the pre tightening force has a good locking effect |
| Can control the level of pre tightening force |
| The same temperature characteristics with the standard bolt / nut |
| Can be used repeatedly |
