M4 Belleville Washer 304 Stainless Steel DIN6796 (10000pcs/Pkg) Package:10000 USS flat washers are larger

USS flat washers are larger than standard flat washers

Countersunk serrated lock washers feature a unique design that provides a secure grip and prevents loosening under vibration

and prevent loosening in high-vibration applications

SAE flat washers are standard flat washers designed to provide a smooth bearing surface and distribute load under bolts

hex nuts can also feature coatings for corrosion resistance

M4 Belleville Washer 304 Stainless Steel DIN6796 (10000pcs/Pkg) Package:10000 USS flat washers are largerBelleville 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.