The C-Standard Locknut LW lockwasher from Applied features a high-alloy steel construction with dimensions suitable for 1/4" to 2" bolt sizes, providing reliable locking performance through its split helical design. The Motion 00553972 lockwasher is designed for secure fastening in industrial applications, typically zinc-plated for corrosion resistance, fitting standard metric sizes such as M8. The Fastenal 0437820 lockwasher is zinc-plated steel with a thickness around 0.040 inches and an inside diameter near 0.174 inches, offering hardness in the Rockwell C38-C43 range for durability. These lockwashers ensure vibration resistance and maintain bolt tension in electrical and mechanical assemblies.