V Series lock bodies are machined from brass and the core head is steel, which is heat-treated and black nickel plated to provide both drill and corrosion resistance. The tumblers and springs in these locks are made from stainless steel, as are the metal parts of the key. In addition, the unusual design of the key helps to prevent unauthorized duplication. Design registration and patent protection have been granted for this lock. Available in 18mm and 25mm body lengths. Supplied with a body nut and a Nyloc type tail nut. Keyed different locks are supplied with two keys per lock. We strongly recommend the use of a Protective Collar, Product Code Number PC1, with this product.