M16 Belleville Washer 316 Stainless Steel DIN6796 (500pcs/Pkg) Weight-Pound:29.5 have a domed head that

have a domed head that protects screws and bolts from stripping

They are commonly used in heavy-duty applications

Nylon insert lock nuts are designed with a nylon insert that grips the threads of the bolt

Eye bolts are fasteners with a looped head

USS flat washers are larger than standard flat washers

M16 Belleville Washer 316 Stainless Steel DIN6796 (500pcs/Pkg) Weight-Pound:29.5 have a domed head thatBelleville 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.