Albany County Fasteners will be closed Friday the 1st at 2:00 pm EST. Office and warehouse operations will resume Tuesday the 5th. Please allow for an additional day handling time for orders to ship. Our website will continue to accept orders and payment during this time.
Belleville washers (also called Belleville Washers, Disc Springs, Spring Washers, Conical Washers, Cupped Spring Washers, or Conical Spring Washers) are used to add a layer of vibration resistance and pre load to a bolt assembly. The conical shape applies a spring force against the bottom of the bolt head to help prevent accidental loosening after installation. Belleville washers can be stacked below a bolt head to add more force to the assembly if needed. Conical washers are commonly used in the automotive and machinery industries.