Cadmium plated fasteners provide lubricity that reduces variations in torque ranges. This produces a more repeatable clamp force and increased corrosion resistance. These fasteners are available in many different body lengths to accommodate varying material thickness.
Cadmium Plating is a corrosion protector. It is used in military. Cadium plating is used to provide a barrier between dissimilar metals in contact to prevent or reduce the rate and effect of electrolytic or galvanic corrosion. Cadmium plating imparts a corrosion resistant surface to steel parts. It is used in harsh environments and aerospace applications.