Barrel Swivels Construction and Finish
It is most common to find swivels made of a nickel-plated brass with snaps and rings made from stainless steel. Many anglers will refuse to use a shiny looking terminal tackle component, but in truth, by turning to a dull or coated alternative, they are likely sacrificing strength and durability. For example, in order to create that black color on a nickel plated swivel, the manufacturer must use finishing processes that eat away at the surface of the metal. Any time you involve a process that takes away from the material you are going to set yourself up for some strength and inconsistency issues - that's just the nature of chemical processes. So, in our opinion, it's always best to opt for the strongest material and therefore the standard color of the metal as it is in production. If it's a bit of stealth you desire or the price of stainless steel is too high, check out the brass alternatives that use the same components, but just a brass housing.