This browser is no longer supported. Upgrade to Microsoft Edge or switch to a supported browser, like Chrome, Safari, or Firefox, to explore the MW Components website.

We're sorry for the inconvenience.

Products > Springs > Disc Springs / Washers

Serrated Disc Washers

Serrated disc springs are a form of disc spring serrated on both sides of a trapezoid cross section. Because their diameters are matched to screw dimensions, the serrated disc springs can be used with practically any screw or bolt. The outer diameter of the serrated disc spring will match up to the head diameter of pan head and hexagon socket head cap screws, including recessed heads.

CAD files for stock and standard serrated disc washers are available in our online store.

Shop Serrated Disc WashersRequest a Quote


Custom Serrated Disc Washers

All our disc springs are subject to exacting manufacturing and quality control standards. All discs are preset so that they will not significantly relax under load over time. MW also offers pre-stressed disc springs specifically sized for use with bolts.

Send us your specs or configure a washer.

Request a Custom Quote

Serrated Disc Washers Manufacturing & Configurations

We offer two series configurations to choose from depending on expected loads and sizing needed for your specific application. OD and ID are the same for both series. Both configurations are generally manufactured from spring steel or corrosion resistant steel; however, stainless steel and other metals may be accommodated for custom orders.


Serrated disc springs are ideal for use with almost any screw or bolt and offer the following advantages:

  • Locking effect at the outside diameter ensures the greatest resistance to loosening
  • Positive locking serrations increase resistance to vibration
  • Concentric application of force eliminates bending bolts
  • Sliding surfaces allow tightening with no surface damage
  • With proper transitional radius between bolt shaft and head, there is no splitting when tightening
  • Suitable for captive fitting on a wide range of bolts
  • Minimizes stock with universal applications


MW stocks standard and specialty materials of all types. Below are some commonly requested materials used to manufacture serrated disc springs and washers.

  • Spring Steel
  • Stainless Steel
  • Corrosion Resistant Steel
  • Specialty Metals

Serrated Disc Washer Configurations

Light Series

The “Light Series” is suitable for normal duty, and is available for screw sizes: .063" to 1.417".

Reinforced Series

Our “Reinforced Series” is thicker, achieves higher pretension loads, and is available for screw sizes .197" to 1.181".

Need a Large Order?

We can design and manufacture a component for your specific application in any quantity. For quantities over 1,000, please request a quote.

Request a Quote