M20 Belleville Washer 304 Stainless Steel DIN6796 (500pcs/Pkg)

Belleville washers, or conical washers, provide a unique spring action that compensates for bolt relaxation and thermal expansion. They maintain consistent pressure in assemblies, absorb shock, and prevent loosening in high-vibration applications, making them ideal for automotive, aerospace, and industrial uses.

• Free Shipping for orders over $100，Orders below $100 will have a shipping fee applied based on the weight of the items and the ship to location
• Usually ships within 3days, takes around 10days to arrive, shipped by UPS\DHL
• Eligible for Return, Refund or Replacement within 30 days of receipt