Contact Washer

​A contact washer, also known as a conical lock washer, is a type of fastening component designed to prevent loosening of bolts and nuts due to vibration and pressure. Its conical shape and ribbed surface provide a 360° locking force around the fastener, enhancing the stability of the connection. ​

• Material Options: Contact washers are typically made from high-carbon spring steel or stainless steel, offering durability and resistance to corrosion.​
  

Applications:

Contact washers are widely used in various industries, including automotive, machinery, and construction, to maintain the integrity of bolted connections subjected to vibrations and dynamic loads. ​

Available Sizes:

Contact washers come in a range of sizes to accommodate different bolt dimensions. For instance, sizes can range from M3 with specific inner and outer diameters and thicknesses, up to M20, each tailored to fit corresponding bolt sizes.

Conical washers, also known as Belleville washers or disc springs, are specialized washers with a conical shape that function as springs. They are primarily used to apply a pre-load or tension between bolted components, ensuring a secure and stable connection. ​Grainger+2Wikipedia+2American Belleville+2

Applications:

• Vibration Absorption: When stacked, conical washers can effectively dampen vibrations and absorb shocks, making them suitable for machinery and automotive applications where movement-induced loosening is a concern. ​
  

Material and Standards:

Belleville washers are typically made from high-carbon steel or stainless steel to withstand significant loads and resist corrosion. They are manufactured according to various standards, such as DIN EN 16984 (formerly DIN 2093), which specifies manufacturing and quality requirements for disc springs.